./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba --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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:29:36,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:29:36,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:29:36,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:29:36,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:29:36,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:29:36,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:29:36,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:29:36,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:29:36,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:29:36,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:29:36,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:29:36,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:29:36,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:29:36,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:29:36,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:29:36,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:29:36,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:29:36,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:29:36,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:29:36,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:29:36,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:29:36,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:29:36,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:29:36,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:29:36,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:29:36,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:29:36,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:29:36,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:29:36,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:29:36,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:29:36,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:29:36,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:29:36,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:29:36,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:29:36,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:29:36,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:29:36,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:29:36,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:29:36,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:29:36,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:29:36,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:29:36,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:29:36,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:29:36,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:29:36,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:29:36,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:29:36,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:29:36,987 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:29:36,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:29:36,987 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:29:36,988 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:29:36,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:29:36,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:29:36,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:29:36,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:29:36,991 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:29:36,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:29:36,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:29:36,992 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:29:36,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:29:36,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:29:36,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:29:36,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:29:36,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:29:36,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:29:36,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:29:36,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:29:36,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:29:36,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:29:36,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:29:36,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:36,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:29:36,999 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:29:36,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:29:37,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:29:37,000 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:29:37,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:29:37,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:29:37,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:29:37,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2022-11-22 01:29:37,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:29:37,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:29:37,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:29:37,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:29:37,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:29:37,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-22 01:29:40,685 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:29:41,274 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:29:41,275 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-22 01:29:41,314 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/data/1bb799329/32157a25e3e541b9a8383e7059e3d588/FLAGe08ce09b8 [2022-11-22 01:29:41,330 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/data/1bb799329/32157a25e3e541b9a8383e7059e3d588 [2022-11-22 01:29:41,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:29:41,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:29:41,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:41,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:29:41,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:29:41,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:41" (1/1) ... [2022-11-22 01:29:41,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49237ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:41, skipping insertion in model container [2022-11-22 01:29:41,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:29:41" (1/1) ... [2022-11-22 01:29:41,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:29:41,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:29:41,786 WARN L237 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_d79127c3-1395-4ab4-8e37-e24d67decab9/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-22 01:29:41,793 WARN L237 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_d79127c3-1395-4ab4-8e37-e24d67decab9/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-22 01:29:42,734 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:29:42,823 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,824 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,825 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,826 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,828 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,844 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,845 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,847 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,848 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,850 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:42,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:29:43,361 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:29:43,363 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:29:43,367 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:29:43,371 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:29:43,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:29:43,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:29:43,378 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:29:43,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:29:43,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:29:43,565 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,573 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,652 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,652 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,653 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:43,691 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:29:43,704 WARN L237 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_d79127c3-1395-4ab4-8e37-e24d67decab9/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-22 01:29:43,705 WARN L237 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_d79127c3-1395-4ab4-8e37-e24d67decab9/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-22 01:29:43,739 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:29:43,756 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,757 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,757 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,766 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,767 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,768 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,768 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,771 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,772 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,772 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,773 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:29:43,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:29:43,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:29:43,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:29:43,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:29:43,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:29:43,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:29:43,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:29:43,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:29:43,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:29:43,894 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,900 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,922 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,923 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,923 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:29:43,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:29:44,186 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:29:44,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44 WrapperNode [2022-11-22 01:29:44,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:29:44,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:44,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:29:44,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:29:44,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,394 INFO L138 Inliner]: procedures = 691, calls = 1680, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 846 [2022-11-22 01:29:44,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:29:44,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:29:44,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:29:44,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:29:44,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:29:44,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:29:44,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:29:44,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:29:44,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (1/1) ... [2022-11-22 01:29:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:29:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:44,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:29:44,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:29:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:29:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-22 01:29:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-22 01:29:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 01:29:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 01:29:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:29:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:29:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-22 01:29:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-22 01:29:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:29:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 01:29:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 01:29:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:29:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:29:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:29:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:29:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:29:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-22 01:29:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-22 01:29:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:29:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:29:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:29:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:29:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:29:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:29:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 01:29:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 01:29:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-22 01:29:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-22 01:29:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-22 01:29:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-22 01:29:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-22 01:29:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-22 01:29:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:29:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:29:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-22 01:29:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-22 01:29:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-22 01:29:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-22 01:29:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:29:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-22 01:29:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-22 01:29:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:29:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:29:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:29:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:29:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 01:29:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 01:29:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-22 01:29:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-22 01:29:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:29:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:29:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:29:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-22 01:29:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-22 01:29:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:29:45,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:29:45,135 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:29:46,535 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:29:46,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:29:46,782 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:29:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:46 BoogieIcfgContainer [2022-11-22 01:29:46,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:29:46,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:29:46,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:29:46,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:29:46,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:29:41" (1/3) ... [2022-11-22 01:29:46,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5a6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:46, skipping insertion in model container [2022-11-22 01:29:46,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:29:44" (2/3) ... [2022-11-22 01:29:46,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5a6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:29:46, skipping insertion in model container [2022-11-22 01:29:46,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:29:46" (3/3) ... [2022-11-22 01:29:46,800 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2022-11-22 01:29:46,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:29:46,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:29:46,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:29:46,915 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2655f4be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:29:46,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:29:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-22 01:29:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:29:46,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:46,943 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:46,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash -821114386, now seen corresponding path program 1 times [2022-11-22 01:29:46,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:46,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468364507] [2022-11-22 01:29:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-22 01:29:48,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:48,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468364507] [2022-11-22 01:29:48,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468364507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:29:48,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128447156] [2022-11-22 01:29:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:48,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:48,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:48,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:29:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:48,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:29:48,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-22 01:29:49,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:49,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128447156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:49,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:29:49,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-22 01:29:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816678479] [2022-11-22 01:29:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:49,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:49,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:49,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:29:49,107 INFO L87 Difference]: Start difference. First operand has 244 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:29:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:49,903 INFO L93 Difference]: Finished difference Result 467 states and 689 transitions. [2022-11-22 01:29:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:29:49,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 114 [2022-11-22 01:29:49,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:49,927 INFO L225 Difference]: With dead ends: 467 [2022-11-22 01:29:49,927 INFO L226 Difference]: Without dead ends: 244 [2022-11-22 01:29:49,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:29:49,946 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 32 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:49,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1049 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:29:49,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-22 01:29:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-22 01:29:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2022-11-22 01:29:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 353 transitions. [2022-11-22 01:29:50,067 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 353 transitions. Word has length 114 [2022-11-22 01:29:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:50,067 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 353 transitions. [2022-11-22 01:29:50,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:29:50,068 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 353 transitions. [2022-11-22 01:29:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-22 01:29:50,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:50,080 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 4, 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] [2022-11-22 01:29:50,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:50,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 01:29:50,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:50,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash -949916096, now seen corresponding path program 1 times [2022-11-22 01:29:50,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:50,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918028479] [2022-11-22 01:29:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:50,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:50,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:50,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185053947] [2022-11-22 01:29:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:50,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:50,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:50,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:50,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:29:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:51,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:29:51,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-22 01:29:51,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:51,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:51,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918028479] [2022-11-22 01:29:51,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:51,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185053947] [2022-11-22 01:29:51,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185053947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:51,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:51,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:29:51,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036008764] [2022-11-22 01:29:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:51,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:29:51,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:29:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:29:51,336 INFO L87 Difference]: Start difference. First operand 244 states and 353 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-22 01:29:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:52,272 INFO L93 Difference]: Finished difference Result 445 states and 643 transitions. [2022-11-22 01:29:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:29:52,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 132 [2022-11-22 01:29:52,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:52,276 INFO L225 Difference]: With dead ends: 445 [2022-11-22 01:29:52,276 INFO L226 Difference]: Without dead ends: 244 [2022-11-22 01:29:52,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:29:52,278 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 127 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:52,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1409 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:29:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-22 01:29:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-22 01:29:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (104), 92 states have call predecessors, (104), 92 states have call successors, (104) [2022-11-22 01:29:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 349 transitions. [2022-11-22 01:29:52,330 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 349 transitions. Word has length 132 [2022-11-22 01:29:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:52,336 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 349 transitions. [2022-11-22 01:29:52,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-22 01:29:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 349 transitions. [2022-11-22 01:29:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-22 01:29:52,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:52,343 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:52,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:52,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:52,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:52,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:52,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1708083302, now seen corresponding path program 2 times [2022-11-22 01:29:52,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:52,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317931996] [2022-11-22 01:29:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:52,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:52,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:52,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911009431] [2022-11-22 01:29:52,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:29:52,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:52,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:52,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:52,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:29:53,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:29:53,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:29:53,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:29:53,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-22 01:29:53,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:53,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:53,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317931996] [2022-11-22 01:29:53,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:53,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911009431] [2022-11-22 01:29:53,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911009431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:53,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:53,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976080254] [2022-11-22 01:29:53,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:53,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:53,362 INFO L87 Difference]: Start difference. First operand 244 states and 349 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:29:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:53,741 INFO L93 Difference]: Finished difference Result 427 states and 602 transitions. [2022-11-22 01:29:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:29:53,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 141 [2022-11-22 01:29:53,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:53,745 INFO L225 Difference]: With dead ends: 427 [2022-11-22 01:29:53,746 INFO L226 Difference]: Without dead ends: 248 [2022-11-22 01:29:53,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:29:53,749 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:53,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1229 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:29:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-22 01:29:53,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-22 01:29:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (106), 93 states have call predecessors, (106), 92 states have call successors, (106) [2022-11-22 01:29:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 354 transitions. [2022-11-22 01:29:53,775 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 354 transitions. Word has length 141 [2022-11-22 01:29:53,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:53,776 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 354 transitions. [2022-11-22 01:29:53,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:29:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 354 transitions. [2022-11-22 01:29:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-22 01:29:53,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:53,779 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:53,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:53,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-22 01:29:53,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash -188427751, now seen corresponding path program 1 times [2022-11-22 01:29:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:53,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846410052] [2022-11-22 01:29:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:53,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:54,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:54,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974614404] [2022-11-22 01:29:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:54,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:54,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:54,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:54,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:29:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:54,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:29:54,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-22 01:29:55,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:55,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:55,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846410052] [2022-11-22 01:29:55,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:55,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974614404] [2022-11-22 01:29:55,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974614404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:55,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:55,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:29:55,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729792343] [2022-11-22 01:29:55,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:55,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:29:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:55,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:29:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:29:55,084 INFO L87 Difference]: Start difference. First operand 248 states and 354 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-22 01:29:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:55,980 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2022-11-22 01:29:55,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:29:55,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 145 [2022-11-22 01:29:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:55,983 INFO L225 Difference]: With dead ends: 448 [2022-11-22 01:29:55,983 INFO L226 Difference]: Without dead ends: 248 [2022-11-22 01:29:55,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:29:55,985 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 175 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:55,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1551 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:29:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-22 01:29:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-22 01:29:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (100), 93 states have call predecessors, (100), 92 states have call successors, (100) [2022-11-22 01:29:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 348 transitions. [2022-11-22 01:29:56,008 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 348 transitions. Word has length 145 [2022-11-22 01:29:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:56,009 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 348 transitions. [2022-11-22 01:29:56,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-22 01:29:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 348 transitions. [2022-11-22 01:29:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 01:29:56,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:56,012 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:56,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:56,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:56,223 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:56,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash 74652997, now seen corresponding path program 2 times [2022-11-22 01:29:56,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:56,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743528557] [2022-11-22 01:29:56,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:56,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:56,353 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934159106] [2022-11-22 01:29:56,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:29:56,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:56,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:56,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:56,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:29:57,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 01:29:57,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:29:57,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1986 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:29:57,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:57,231 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-22 01:29:57,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:57,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:57,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743528557] [2022-11-22 01:29:57,232 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:57,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934159106] [2022-11-22 01:29:57,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934159106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:57,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:57,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200213641] [2022-11-22 01:29:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:57,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:57,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:57,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:57,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:57,240 INFO L87 Difference]: Start difference. First operand 248 states and 348 transitions. Second operand has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:29:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:57,795 INFO L93 Difference]: Finished difference Result 445 states and 620 transitions. [2022-11-22 01:29:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:29:57,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 154 [2022-11-22 01:29:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:57,798 INFO L225 Difference]: With dead ends: 445 [2022-11-22 01:29:57,798 INFO L226 Difference]: Without dead ends: 248 [2022-11-22 01:29:57,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:57,800 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:57,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1118 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:29:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-22 01:29:57,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-22 01:29:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (99), 93 states have call predecessors, (99), 92 states have call successors, (99) [2022-11-22 01:29:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 347 transitions. [2022-11-22 01:29:57,838 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 347 transitions. Word has length 154 [2022-11-22 01:29:57,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:57,840 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 347 transitions. [2022-11-22 01:29:57,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:29:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 347 transitions. [2022-11-22 01:29:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-22 01:29:57,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:57,845 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:57,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:58,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:58,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:58,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:58,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1276385801, now seen corresponding path program 3 times [2022-11-22 01:29:58,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:58,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510451300] [2022-11-22 01:29:58,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:58,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:58,184 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:58,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645270579] [2022-11-22 01:29:58,184 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:29:58,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:58,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:58,186 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:58,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:29:59,069 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:29:59,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:29:59,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 3068 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 01:29:59,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-22 01:29:59,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:59,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:59,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510451300] [2022-11-22 01:29:59,281 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:59,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645270579] [2022-11-22 01:29:59,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645270579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:59,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:59,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:29:59,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021498543] [2022-11-22 01:29:59,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:59,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:29:59,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:59,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:29:59,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:29:59,286 INFO L87 Difference]: Start difference. First operand 248 states and 347 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-22 01:30:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:00,351 INFO L93 Difference]: Finished difference Result 432 states and 594 transitions. [2022-11-22 01:30:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:30:00,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 163 [2022-11-22 01:30:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:00,354 INFO L225 Difference]: With dead ends: 432 [2022-11-22 01:30:00,355 INFO L226 Difference]: Without dead ends: 248 [2022-11-22 01:30:00,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:30:00,357 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 220 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:00,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1720 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:30:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-22 01:30:00,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-22 01:30:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (96), 93 states have call predecessors, (96), 92 states have call successors, (96) [2022-11-22 01:30:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 344 transitions. [2022-11-22 01:30:00,376 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 344 transitions. Word has length 163 [2022-11-22 01:30:00,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:00,377 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 344 transitions. [2022-11-22 01:30:00,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-22 01:30:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 344 transitions. [2022-11-22 01:30:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-22 01:30:00,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:00,381 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:00,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:00,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:00,595 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:00,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1561834877, now seen corresponding path program 1 times [2022-11-22 01:30:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220074809] [2022-11-22 01:30:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:00,732 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:30:00,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879288058] [2022-11-22 01:30:00,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:00,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:00,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:00,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:00,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79127c3-1395-4ab4-8e37-e24d67decab9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:30:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:01,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 3200 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-22 01:30:01,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 161 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-22 01:30:01,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-22 01:30:02,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:02,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220074809] [2022-11-22 01:30:02,627 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:30:02,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879288058] [2022-11-22 01:30:02,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879288058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:02,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [110728303] [2022-11-22 01:30:02,659 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-11-22 01:30:02,659 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:02,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:02,671 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:02,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:07,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:07,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:07,956 INFO L217 Elim1Store]: Index analysis took 483 ms [2022-11-22 01:30:39,901 WARN L233 SmtUtils]: Spent 31.85s on a formula simplification. DAG size of input: 2128 DAG size of output: 1161 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:30:39,909 INFO L321 Elim1Store]: treesize reduction 3474, result has 33.3 percent of original size [2022-11-22 01:30:39,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19310 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 386 case distinctions, treesize of input 997 treesize of output 2357 [2022-11-22 01:30:43,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:43,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:43,505 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-22 01:30:43,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19307 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 0 case distinctions, treesize of input 987 treesize of output 1574 [2022-11-22 01:31:48,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,761 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 43 [2022-11-22 01:31:48,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,767 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 43 [2022-11-22 01:31:48,774 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:48,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,784 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:51,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:52,053 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:31:52,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19501 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 2 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:31:52,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:52,684 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:31:52,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19305 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 2 case distinctions, treesize of input 986 treesize of output 592 [2022-11-22 01:31:53,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,207 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-22 01:31:53,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,239 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:31:53,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1245 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 4 case distinctions, treesize of input 644 treesize of output 304 [2022-11-22 01:31:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,821 INFO L217 Elim1Store]: Index analysis took 162 ms [2022-11-22 01:31:53,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:53,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:53,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:53,928 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:31:53,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17054 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-22 01:31:54,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,759 INFO L217 Elim1Store]: Index analysis took 189 ms [2022-11-22 01:31:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:54,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:54,880 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-22 01:31:54,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17054 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-22 01:32:04,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,022 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:32:05,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19501 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 2 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:32:05,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,756 INFO L217 Elim1Store]: Index analysis took 175 ms [2022-11-22 01:32:05,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,842 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:32:05,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17054 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-22 01:32:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,554 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-11-22 01:32:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:06,659 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-22 01:32:06,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17054 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-22 01:32:07,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,136 INFO L217 Elim1Store]: Index analysis took 114 ms [2022-11-22 01:32:07,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-22 01:32:07,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:07,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-22 01:32:08,736 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,745 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,775 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,780 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,823 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,830 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,836 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,849 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,917 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:08,918 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,930 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:08,942 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:09,002 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:09,008 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:09,040 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:09,041 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:09,100 INFO L350 Elim1Store]: Elim1 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 6 treesize of output 5 [2022-11-22 01:32:09,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-11-22 01:32:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-22 01:32:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-22 01:32:11,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-11-22 01:32:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:11,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-22 01:32:12,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:12,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-22 01:32:13,204 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:32:13,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-22 01:32:13,272 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:32:13,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-22 01:32:13,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:13,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:13,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:13,652 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:32:13,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 33 [2022-11-22 01:32:13,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:32:13,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:13,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:13,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:13,714 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:32:13,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 38 [2022-11-22 01:32:13,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:13,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:13,754 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:32:13,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 32 [2022-11-22 01:32:13,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:32:13,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:32:14,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:14,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:14,106 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:32:14,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 38 [2022-11-22 01:32:14,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:14,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:14,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:14,131 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:32:14,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 32 [2022-11-22 01:32:14,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:32:14,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:14,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:14,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:14,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:14,182 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:32:14,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 33 [2022-11-22 01:32:32,381 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 47 for LOIs [2022-11-22 01:32:32,407 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,418 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,480 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,489 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,514 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:32,514 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-22 01:32:32,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:32,584 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-22 01:32:32,599 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,609 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:32,954 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-22 01:32:32,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 180 treesize of output 197 [2022-11-22 01:32:33,568 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 94 for LOIs [2022-11-22 01:32:33,913 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 80 for LOIs [2022-11-22 01:32:33,949 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2819 for LOIs [2022-11-22 01:32:37,336 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2869 for LOIs [2022-11-22 01:34:16,730 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 2864 for LOIs [2022-11-22 01:34:22,878 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 70 for LOIs [2022-11-22 01:34:22,887 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 88 for LOIs [2022-11-22 01:34:23,032 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 82 for LOIs [2022-11-22 01:34:23,046 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:36:14,067 WARN L233 SmtUtils]: Spent 1.83m on a formula simplification. DAG size of input: 2815 DAG size of output: 2431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:38:58,956 WARN L233 SmtUtils]: Spent 2.73m on a formula simplification. DAG size of input: 2819 DAG size of output: 2435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:42:28,858 WARN L233 SmtUtils]: Spent 3.47m on a formula simplification. DAG size of input: 2861 DAG size of output: 2477 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)