./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_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_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/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_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/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_32540d7b-df1a-42bd-a754-3cdeccb338da/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 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:57:44,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:57:44,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:57:44,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:57:44,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:57:44,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:57:44,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:57:44,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:57:44,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:57:44,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:57:44,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:57:44,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:57:44,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:57:44,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:57:44,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:57:44,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:57:44,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:57:44,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:57:44,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:57:44,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:57:45,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:57:45,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:57:45,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:57:45,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:57:45,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:57:45,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:57:45,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:57:45,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:57:45,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:57:45,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:57:45,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:57:45,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:57:45,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:57:45,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:57:45,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:57:45,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:57:45,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:57:45,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:57:45,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:57:45,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:57:45,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:57:45,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:57:45,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:57:45,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:57:45,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:57:45,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:57:45,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:57:45,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:57:45,057 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:57:45,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:57:45,058 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:57:45,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:57:45,058 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:57:45,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:57:45,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:57:45,059 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:57:45,059 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:57:45,059 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:57:45,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:57:45,060 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:57:45,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:57:45,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:57:45,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:57:45,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:57:45,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:57:45,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:57:45,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:57:45,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:57:45,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:57:45,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:57:45,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:57:45,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:57:45,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:57:45,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:57:45,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:57:45,064 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:57:45,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:57:45,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:57:45,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:57:45,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:57:45,065 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_32540d7b-df1a-42bd-a754-3cdeccb338da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 [2021-11-21 00:57:45,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:57:45,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:57:45,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:57:45,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:57:45,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:57:45,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-21 00:57:45,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/data/861d6fa6c/1df7c4a605f4473d94198b894718f90d/FLAG181ea2e00 [2021-11-21 00:57:46,289 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:57:46,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-21 00:57:46,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/data/861d6fa6c/1df7c4a605f4473d94198b894718f90d/FLAG181ea2e00 [2021-11-21 00:57:46,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/data/861d6fa6c/1df7c4a605f4473d94198b894718f90d [2021-11-21 00:57:46,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:57:46,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:57:46,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:57:46,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:57:46,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:57:46,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:57:46" (1/1) ... [2021-11-21 00:57:46,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232374e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:46, skipping insertion in model container [2021-11-21 00:57:46,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:57:46" (1/1) ... [2021-11-21 00:57:46,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:57:46,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:57:47,255 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_32540d7b-df1a-42bd-a754-3cdeccb338da/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-21 00:57:47,261 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_32540d7b-df1a-42bd-a754-3cdeccb338da/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-21 00:57:48,195 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,196 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,199 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,212 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,213 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,215 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,216 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,218 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,219 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,219 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,220 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:57:48,619 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:57:48,620 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:57:48,621 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:57:48,622 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:57:48,623 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:57:48,623 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:57:48,624 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:57:48,625 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:57:48,625 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:57:48,823 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:57:48,911 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,987 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,989 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,989 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,989 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,990 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,990 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,990 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,991 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,991 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,994 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,999 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:48,999 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,007 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,008 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:57:49,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:57:49,069 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_32540d7b-df1a-42bd-a754-3cdeccb338da/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-21 00:57:49,070 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_32540d7b-df1a-42bd-a754-3cdeccb338da/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-21 00:57:49,106 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,110 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,110 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,111 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,112 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,129 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,129 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,130 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,130 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,132 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,133 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,133 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,133 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:57:49,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:57:49,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:57:49,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:57:49,200 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:57:49,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:57:49,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:57:49,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:57:49,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:57:49,203 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:57:49,261 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:57:49,282 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,287 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,326 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,329 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,331 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,331 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,332 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,333 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,334 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,337 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,338 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:57:49,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:57:49,671 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:57:49,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49 WrapperNode [2021-11-21 00:57:49,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:57:49,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:57:49,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:57:49,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:57:49,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,899 INFO L137 Inliner]: procedures = 697, calls = 1880, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1145 [2021-11-21 00:57:49,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:57:49,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:57:49,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:57:49,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:57:49,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:49,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:50,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:50,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:50,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:57:50,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:57:50,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:57:50,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:57:50,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (1/1) ... [2021-11-21 00:57:50,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:57:50,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:57:50,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:57:50,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:57:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-21 00:57:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-21 00:57:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2021-11-21 00:57:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2021-11-21 00:57:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-21 00:57:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-21 00:57:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:57:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-21 00:57:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-21 00:57:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-21 00:57:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-21 00:57:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 00:57:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 00:57:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-21 00:57:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-21 00:57:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-11-21 00:57:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-11-21 00:57:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:57:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-21 00:57:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-21 00:57:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:57:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:57:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:57:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:57:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:57:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-11-21 00:57:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-11-21 00:57:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-21 00:57:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-21 00:57:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:57:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:57:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 00:57:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 00:57:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-21 00:57:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-21 00:57:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-21 00:57:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-21 00:57:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-21 00:57:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-21 00:57:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-21 00:57:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-21 00:57:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-21 00:57:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-21 00:57:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:57:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:57:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 00:57:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 00:57:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-21 00:57:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-21 00:57:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2021-11-21 00:57:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2021-11-21 00:57:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-21 00:57:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-21 00:57:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:57:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-21 00:57:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-21 00:57:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:57:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:57:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2021-11-21 00:57:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2021-11-21 00:57:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-21 00:57:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-21 00:57:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 00:57:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 00:57:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-21 00:57:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-21 00:57:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-21 00:57:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-21 00:57:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:57:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-21 00:57:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-21 00:57:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-11-21 00:57:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-11-21 00:57:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-21 00:57:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-21 00:57:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 00:57:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 00:57:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:57:50,650 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:57:50,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:57:52,354 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:57:52,707 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:57:52,708 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 00:57:52,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:52 BoogieIcfgContainer [2021-11-21 00:57:52,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:57:52,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:57:52,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:57:52,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:57:52,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:57:46" (1/3) ... [2021-11-21 00:57:52,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228a14bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:52, skipping insertion in model container [2021-11-21 00:57:52,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:49" (2/3) ... [2021-11-21 00:57:52,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228a14bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:52, skipping insertion in model container [2021-11-21 00:57:52,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:52" (3/3) ... [2021-11-21 00:57:52,731 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness.i [2021-11-21 00:57:52,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:57:52,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:57:52,804 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:57:52,820 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:57:52,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:57:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 461 states, 233 states have (on average 1.201716738197425) internal successors, (280), 236 states have internal predecessors, (280), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2021-11-21 00:57:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 00:57:52,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:57:52,886 INFO L514 BasicCegarLoop]: trace histogram [11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:57:52,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:57:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:57:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1314052006, now seen corresponding path program 1 times [2021-11-21 00:57:52,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:57:52,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337272637] [2021-11-21 00:57:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:52,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:57:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-21 00:57:53,781 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:57:53,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337272637] [2021-11-21 00:57:53,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337272637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:57:53,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16222528] [2021-11-21 00:57:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:53,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:57:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:57:53,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:57:53,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:57:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:54,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:57:54,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:57:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-21 00:57:54,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:57:54,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16222528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:57:54,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:57:54,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-21 00:57:54,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847263826] [2021-11-21 00:57:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:57:54,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:57:54,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:57:54,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:57:54,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:57:54,861 INFO L87 Difference]: Start difference. First operand has 461 states, 233 states have (on average 1.201716738197425) internal successors, (280), 236 states have internal predecessors, (280), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 00:57:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:57:55,797 INFO L93 Difference]: Finished difference Result 895 states and 1358 transitions. [2021-11-21 00:57:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:57:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 123 [2021-11-21 00:57:55,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:57:55,818 INFO L225 Difference]: With dead ends: 895 [2021-11-21 00:57:55,818 INFO L226 Difference]: Without dead ends: 460 [2021-11-21 00:57:55,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:57:55,831 INFO L933 BasicCegarLoop]: 598 mSDtfsCounter, 18 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:57:55,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 2341 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:57:55,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-11-21 00:57:55,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2021-11-21 00:57:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 232 states have (on average 1.1896551724137931) internal successors, (276), 235 states have internal predecessors, (276), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2021-11-21 00:57:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 668 transitions. [2021-11-21 00:57:55,952 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 668 transitions. Word has length 123 [2021-11-21 00:57:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:57:55,953 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 668 transitions. [2021-11-21 00:57:55,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 00:57:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 668 transitions. [2021-11-21 00:57:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-21 00:57:55,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:57:55,964 INFO L514 BasicCegarLoop]: trace histogram [11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:57:56,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:57:56,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:57:56,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:57:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:57:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1194641517, now seen corresponding path program 1 times [2021-11-21 00:57:56,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:57:56,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238933287] [2021-11-21 00:57:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:56,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:57:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-21 00:57:56,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:57:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238933287] [2021-11-21 00:57:56,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238933287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:57:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421318825] [2021-11-21 00:57:56,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:56,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:57:56,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:57:56,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:57:56,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:57:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:56,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:57:57,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:57:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-21 00:57:57,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:57:57,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421318825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:57:57,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:57:57,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-11-21 00:57:57,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643768380] [2021-11-21 00:57:57,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:57:57,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 00:57:57,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:57:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 00:57:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-21 00:57:57,402 INFO L87 Difference]: Start difference. First operand 460 states and 668 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-21 00:57:58,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:57:58,408 INFO L93 Difference]: Finished difference Result 905 states and 1354 transitions. [2021-11-21 00:57:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:57:58,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 131 [2021-11-21 00:57:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:57:58,418 INFO L225 Difference]: With dead ends: 905 [2021-11-21 00:57:58,419 INFO L226 Difference]: Without dead ends: 473 [2021-11-21 00:57:58,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-21 00:57:58,424 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 36 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:57:58,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 3279 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:57:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-21 00:57:58,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2021-11-21 00:57:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2021-11-21 00:57:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 714 transitions. [2021-11-21 00:57:58,489 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 714 transitions. Word has length 131 [2021-11-21 00:57:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:57:58,490 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 714 transitions. [2021-11-21 00:57:58,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-21 00:57:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 714 transitions. [2021-11-21 00:57:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-21 00:57:58,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:57:58,494 INFO L514 BasicCegarLoop]: trace histogram [11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:57:58,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:57:58,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:57:58,722 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:57:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:57:58,723 INFO L85 PathProgramCache]: Analyzing trace with hash -972521449, now seen corresponding path program 1 times [2021-11-21 00:57:58,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:57:58,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818510080] [2021-11-21 00:57:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:58,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:57:58,804 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:57:58,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231061829] [2021-11-21 00:57:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:58,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:57:58,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:57:58,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:57:58,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:57:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:59,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:57:59,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:57:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-21 00:57:59,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:57:59,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:57:59,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818510080] [2021-11-21 00:57:59,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:57:59,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231061829] [2021-11-21 00:57:59,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231061829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:57:59,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:57:59,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:57:59,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261326680] [2021-11-21 00:57:59,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:57:59,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:57:59,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:57:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:57:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:57:59,731 INFO L87 Difference]: Start difference. First operand 471 states and 714 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-21 00:58:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:00,327 INFO L93 Difference]: Finished difference Result 922 states and 1420 transitions. [2021-11-21 00:58:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:58:00,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 140 [2021-11-21 00:58:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:00,333 INFO L225 Difference]: With dead ends: 922 [2021-11-21 00:58:00,334 INFO L226 Difference]: Without dead ends: 479 [2021-11-21 00:58:00,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:58:00,346 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 29 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:00,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 2910 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 00:58:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-21 00:58:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 471. [2021-11-21 00:58:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2021-11-21 00:58:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 714 transitions. [2021-11-21 00:58:00,405 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 714 transitions. Word has length 140 [2021-11-21 00:58:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:00,406 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 714 transitions. [2021-11-21 00:58:00,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-21 00:58:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 714 transitions. [2021-11-21 00:58:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 00:58:00,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:00,413 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:00,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:00,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:00,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:00,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash 909644124, now seen corresponding path program 1 times [2021-11-21 00:58:00,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:00,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735922211] [2021-11-21 00:58:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:00,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:00,702 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:00,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836670259] [2021-11-21 00:58:00,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:00,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:00,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:00,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:00,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:58:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:58:01,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 2538 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:58:01,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-21 00:58:01,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:58:01,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735922211] [2021-11-21 00:58:01,644 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836670259] [2021-11-21 00:58:01,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836670259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:01,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:01,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 00:58:01,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93063486] [2021-11-21 00:58:01,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:01,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:58:01,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:01,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:58:01,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:58:01,647 INFO L87 Difference]: Start difference. First operand 471 states and 714 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-21 00:58:02,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:02,657 INFO L93 Difference]: Finished difference Result 924 states and 1417 transitions. [2021-11-21 00:58:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:58:02,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 148 [2021-11-21 00:58:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:02,664 INFO L225 Difference]: With dead ends: 924 [2021-11-21 00:58:02,664 INFO L226 Difference]: Without dead ends: 481 [2021-11-21 00:58:02,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:58:02,668 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 52 mSDsluCounter, 3511 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:02,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3814 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:58:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-21 00:58:02,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 471. [2021-11-21 00:58:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2021-11-21 00:58:02,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 714 transitions. [2021-11-21 00:58:02,702 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 714 transitions. Word has length 148 [2021-11-21 00:58:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:02,703 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 714 transitions. [2021-11-21 00:58:02,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-21 00:58:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 714 transitions. [2021-11-21 00:58:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-21 00:58:02,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:02,707 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:02,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:02,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:02,934 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash 245892058, now seen corresponding path program 2 times [2021-11-21 00:58:02,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:02,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142829656] [2021-11-21 00:58:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:02,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:03,013 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:03,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033166410] [2021-11-21 00:58:03,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:58:03,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:03,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:03,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:03,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:58:03,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-21 00:58:03,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:58:03,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:58:03,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-21 00:58:03,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:58:03,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:03,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142829656] [2021-11-21 00:58:03,843 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:03,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033166410] [2021-11-21 00:58:03,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033166410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:03,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:03,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:58:03,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011798477] [2021-11-21 00:58:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:03,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:58:03,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:58:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:58:03,846 INFO L87 Difference]: Start difference. First operand 471 states and 714 transitions. Second operand has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:58:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:04,579 INFO L93 Difference]: Finished difference Result 894 states and 1373 transitions. [2021-11-21 00:58:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:58:04,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 157 [2021-11-21 00:58:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:04,585 INFO L225 Difference]: With dead ends: 894 [2021-11-21 00:58:04,585 INFO L226 Difference]: Without dead ends: 471 [2021-11-21 00:58:04,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:58:04,590 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 0 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:04,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2236 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:58:04,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-11-21 00:58:04,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2021-11-21 00:58:04,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (232), 194 states have call predecessors, (232), 193 states have call successors, (232) [2021-11-21 00:58:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 713 transitions. [2021-11-21 00:58:04,621 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 713 transitions. Word has length 157 [2021-11-21 00:58:04,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:04,622 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 713 transitions. [2021-11-21 00:58:04,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:58:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 713 transitions. [2021-11-21 00:58:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-21 00:58:04,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:04,625 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:04,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:04,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:04,834 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:04,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:04,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1160757588, now seen corresponding path program 3 times [2021-11-21 00:58:04,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:04,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063357229] [2021-11-21 00:58:04,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:04,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:04,901 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:04,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727675653] [2021-11-21 00:58:04,901 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-21 00:58:04,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:04,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:04,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:04,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:58:05,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-21 00:58:05,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:58:05,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:58:05,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-21 00:58:05,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:58:05,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:05,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063357229] [2021-11-21 00:58:05,519 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:05,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727675653] [2021-11-21 00:58:05,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727675653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:05,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:05,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 00:58:05,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366257636] [2021-11-21 00:58:05,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:05,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:58:05,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:58:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:58:05,521 INFO L87 Difference]: Start difference. First operand 471 states and 713 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-21 00:58:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:06,541 INFO L93 Difference]: Finished difference Result 987 states and 1512 transitions. [2021-11-21 00:58:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:58:06,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 166 [2021-11-21 00:58:06,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:06,548 INFO L225 Difference]: With dead ends: 987 [2021-11-21 00:58:06,549 INFO L226 Difference]: Without dead ends: 560 [2021-11-21 00:58:06,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:58:06,553 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 100 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:06,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 4242 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:58:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-21 00:58:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 544. [2021-11-21 00:58:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 282 states have (on average 1.2056737588652482) internal successors, (340), 287 states have internal predecessors, (340), 224 states have call successors, (224), 34 states have call predecessors, (224), 36 states have return successors, (275), 222 states have call predecessors, (275), 222 states have call successors, (275) [2021-11-21 00:58:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 839 transitions. [2021-11-21 00:58:06,596 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 839 transitions. Word has length 166 [2021-11-21 00:58:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:06,596 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 839 transitions. [2021-11-21 00:58:06,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-21 00:58:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 839 transitions. [2021-11-21 00:58:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-21 00:58:06,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:06,600 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:06,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:06,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 00:58:06,814 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:06,814 INFO L85 PathProgramCache]: Analyzing trace with hash -990289880, now seen corresponding path program 4 times [2021-11-21 00:58:06,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:06,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228495399] [2021-11-21 00:58:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:06,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:06,877 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:06,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914524003] [2021-11-21 00:58:06,877 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-21 00:58:06,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:06,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:06,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:06,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 00:58:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:58:07,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2868 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:58:07,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-21 00:58:07,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:58:07,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:07,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228495399] [2021-11-21 00:58:07,790 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:07,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914524003] [2021-11-21 00:58:07,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914524003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:07,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:07,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 00:58:07,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040910207] [2021-11-21 00:58:07,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:07,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 00:58:07,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:07,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 00:58:07,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:58:07,794 INFO L87 Difference]: Start difference. First operand 544 states and 839 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-21 00:58:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:08,502 INFO L93 Difference]: Finished difference Result 930 states and 1416 transitions. [2021-11-21 00:58:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:58:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 175 [2021-11-21 00:58:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:08,507 INFO L225 Difference]: With dead ends: 930 [2021-11-21 00:58:08,507 INFO L226 Difference]: Without dead ends: 473 [2021-11-21 00:58:08,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:58:08,511 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 85 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:08,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 3396 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:58:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-21 00:58:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-11-21 00:58:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 241 states have (on average 1.1908713692946058) internal successors, (287), 245 states have internal predecessors, (287), 195 states have call successors, (195), 33 states have call predecessors, (195), 35 states have return successors, (236), 194 states have call predecessors, (236), 193 states have call successors, (236) [2021-11-21 00:58:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 718 transitions. [2021-11-21 00:58:08,542 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 718 transitions. Word has length 175 [2021-11-21 00:58:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:08,542 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 718 transitions. [2021-11-21 00:58:08,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-21 00:58:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 718 transitions. [2021-11-21 00:58:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-21 00:58:08,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:08,546 INFO L514 BasicCegarLoop]: trace histogram [11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:08,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:08,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:08,770 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1741983641, now seen corresponding path program 1 times [2021-11-21 00:58:08,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:08,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076336599] [2021-11-21 00:58:08,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:08,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:08,848 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:08,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110998710] [2021-11-21 00:58:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:08,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:08,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:08,850 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:08,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 00:58:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:58:09,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:58:09,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-21 00:58:09,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:58:09,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:09,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076336599] [2021-11-21 00:58:09,765 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:09,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110998710] [2021-11-21 00:58:09,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110998710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:09,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:09,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:58:09,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122463989] [2021-11-21 00:58:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:09,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:58:09,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:58:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:58:09,769 INFO L87 Difference]: Start difference. First operand 473 states and 718 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-21 00:58:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:10,908 INFO L93 Difference]: Finished difference Result 915 states and 1397 transitions. [2021-11-21 00:58:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:58:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 174 [2021-11-21 00:58:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:10,915 INFO L225 Difference]: With dead ends: 915 [2021-11-21 00:58:10,915 INFO L226 Difference]: Without dead ends: 481 [2021-11-21 00:58:10,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:58:10,919 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 104 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 4263 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:10,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 4263 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 00:58:10,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-21 00:58:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2021-11-21 00:58:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 246 states have (on average 1.1910569105691058) internal successors, (293), 249 states have internal predecessors, (293), 196 states have call successors, (196), 33 states have call predecessors, (196), 35 states have return successors, (237), 196 states have call predecessors, (237), 194 states have call successors, (237) [2021-11-21 00:58:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 726 transitions. [2021-11-21 00:58:10,954 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 726 transitions. Word has length 174 [2021-11-21 00:58:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:10,958 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 726 transitions. [2021-11-21 00:58:10,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-21 00:58:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 726 transitions. [2021-11-21 00:58:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-21 00:58:10,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:10,962 INFO L514 BasicCegarLoop]: trace histogram [11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:11,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:58:11,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:11,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 251211293, now seen corresponding path program 2 times [2021-11-21 00:58:11,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:11,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184248879] [2021-11-21 00:58:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:11,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:11,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:58:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916586563] [2021-11-21 00:58:11,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:58:11,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:58:11,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:58:11,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:58:11,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32540d7b-df1a-42bd-a754-3cdeccb338da/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 00:58:11,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-21 00:58:11,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:58:11,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-21 00:58:11,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:58:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-21 00:58:12,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:58:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-21 00:58:12,788 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184248879] [2021-11-21 00:58:12,789 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:58:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916586563] [2021-11-21 00:58:12,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916586563] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:58:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [16632799] [2021-11-21 00:58:12,844 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2021-11-21 00:58:12,845 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:58:12,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:58:12,855 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:58:12,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:58:18,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:19,143 INFO L244 Elim1Store]: Index analysis took 431 ms [2021-11-21 00:58:38,079 WARN L227 SmtUtils]: Spent 18.85s on a formula simplification. DAG size of input: 1767 DAG size of output: 1175 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:58:38,085 INFO L354 Elim1Store]: treesize reduction 1968, result has 47.2 percent of original size [2021-11-21 00:58:38,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19308 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 196 case distinctions, treesize of input 992 treesize of output 2358 [2021-11-21 00:59:00,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:01,702 INFO L244 Elim1Store]: Index analysis took 1217 ms [2021-11-21 00:59:29,908 WARN L227 SmtUtils]: Spent 28.14s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:59:29,918 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 00:59:29,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19505 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 392 case distinctions, treesize of input 1002 treesize of output 2377 [2021-11-21 01:00:05,866 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:05,987 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:06,832 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:12,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:12,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:12,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:12,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2021-11-21 01:00:12,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:00:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:12,521 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 21 treesize of output 20 [2021-11-21 01:00:12,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:12,541 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 21 treesize of output 20 [2021-11-21 01:00:15,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:15,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:00:15,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:15,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:00:15,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:15,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:16,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:00:16,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:00:16,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:00:16,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:00:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:16,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2021-11-21 01:00:17,155 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 15 treesize of output 1 [2021-11-21 01:00:17,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:00:17,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:00:17,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2021-11-21 01:00:17,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:00:18,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:00:18,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:00:18,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:00:18,052 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 15 treesize of output 1 [2021-11-21 01:00:18,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:18,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:00:18,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2021-11-21 01:00:18,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:00:18,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:00:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:18,454 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:00:18,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2021-11-21 01:00:18,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:00:18,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:00:18,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:00:19,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:00:19,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:00:19,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-21 01:00:19,567 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:00:19,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-21 01:00:19,627 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:00:19,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:00:19,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:00:21,927 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-21 01:00:23,595 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-21 01:00:40,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 26 treesize of output 10 [2021-11-21 01:00:40,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 26 treesize of output 10 [2021-11-21 01:00:40,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:40,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:41,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 26 treesize of output 10 [2021-11-21 01:00:41,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:41,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 26 treesize of output 10 [2021-11-21 01:00:51,773 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:51,987 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:52,058 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 81 for LOIs [2021-11-21 01:00:53,125 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 114 for LOIs [2021-11-21 01:00:56,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-21 01:00:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-21 01:00:56,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-21 01:00:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-21 01:00:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:56,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-21 01:01:01,234 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-21 01:01:02,327 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-21 01:07:29,477 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-21 01:07:34,510 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)