./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_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_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/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_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/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_7a5d5f38-e229-416c-8590-9f8f5821a170/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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- 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 01:28:07,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:28:07,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:28:08,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:28:08,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:28:08,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:28:08,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:28:08,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:28:08,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:28:08,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:28:08,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:28:08,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:28:08,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:28:08,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:28:08,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:28:08,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:28:08,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:28:08,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:28:08,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:28:08,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:28:08,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:28:08,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:28:08,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:28:08,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:28:08,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:28:08,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:28:08,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:28:08,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:28:08,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:28:08,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:28:08,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:28:08,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:28:08,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:28:08,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:28:08,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:28:08,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:28:08,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:28:08,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:28:08,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:28:08,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:28:08,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:28:08,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:28:08,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:28:08,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:28:08,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:28:08,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:28:08,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:28:08,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:28:08,075 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:28:08,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:28:08,075 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:28:08,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:28:08,076 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:28:08,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:28:08,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:28:08,076 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:28:08,077 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:28:08,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:28:08,077 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:28:08,077 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:28:08,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:28:08,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:28:08,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:28:08,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:28:08,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:28:08,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:28:08,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:28:08,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:28:08,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:28:08,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:28:08,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:28:08,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:08,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:28:08,081 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:28:08,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:28:08,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:28:08,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:28:08,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:28:08,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:28:08,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:28:08,083 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_7a5d5f38-e229-416c-8590-9f8f5821a170/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2022-11-22 01:28:08,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:28:08,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:28:08,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:28:08,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:28:08,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:28:08,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-11-22 01:28:11,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:28:11,988 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:28:11,988 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-11-22 01:28:12,025 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/data/5f86a762d/70813131b9354de38d49dd207e629c80/FLAG0adb42a45 [2022-11-22 01:28:12,044 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/data/5f86a762d/70813131b9354de38d49dd207e629c80 [2022-11-22 01:28:12,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:28:12,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:28:12,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:12,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:28:12,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:28:12,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:12" (1/1) ... [2022-11-22 01:28:12,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e66e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:12, skipping insertion in model container [2022-11-22 01:28:12,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:12" (1/1) ... [2022-11-22 01:28:12,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:28:12,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:28:12,505 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_7a5d5f38-e229-416c-8590-9f8f5821a170/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-11-22 01:28:12,536 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_7a5d5f38-e229-416c-8590-9f8f5821a170/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-11-22 01:28:13,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,501 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,502 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,504 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,506 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,533 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,535 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,535 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,537 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,538 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,544 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,544 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:13,941 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:28:13,942 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:28:13,943 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:28:13,944 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:28:13,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:28:13,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:28:13,947 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:28:13,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:28:13,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:28:13,949 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:28:14,126 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:28:14,173 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,174 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,181 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,196 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,305 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,306 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,306 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,306 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,306 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,307 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,307 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,308 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,309 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,309 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,310 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,310 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,310 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,316 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,316 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,317 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,318 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,324 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,325 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,337 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,338 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,338 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:14,415 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:28:14,431 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_7a5d5f38-e229-416c-8590-9f8f5821a170/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-11-22 01:28:14,432 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_7a5d5f38-e229-416c-8590-9f8f5821a170/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-11-22 01:28:14,466 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,467 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,467 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,467 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,468 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,476 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,477 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,478 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,480 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,481 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,481 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:28:14,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:28:14,517 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:28:14,518 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:28:14,519 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:28:14,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:28:14,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:28:14,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:28:14,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:28:14,522 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:28:14,544 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:28:14,559 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,559 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,561 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,566 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,634 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,634 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,636 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,636 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,637 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,637 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,638 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,638 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,638 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,639 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,639 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,640 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,640 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,640 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,643 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,643 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,648 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,649 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,650 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:28:14,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:14,912 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:28:14,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14 WrapperNode [2022-11-22 01:28:14,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:14,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:14,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:28:14,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:28:14,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,103 INFO L138 Inliner]: procedures = 697, calls = 1886, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 814 [2022-11-22 01:28:15,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:15,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:28:15,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:28:15,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:28:15,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,224 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:28:15,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:28:15,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:28:15,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:28:15,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (1/1) ... [2022-11-22 01:28:15,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:15,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:28:15,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:28:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-22 01:28:15,358 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-22 01:28:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-22 01:28:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-22 01:28:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:28:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-22 01:28:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-22 01:28:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 01:28:15,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 01:28:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:28:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:28:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-22 01:28:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-22 01:28:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:28:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 01:28:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 01:28:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:28:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:28:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:28:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:28:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:28:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-22 01:28:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-22 01:28:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-22 01:28:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-22 01:28:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:28:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:28:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:28:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:28:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 01:28:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 01:28:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-22 01:28:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-22 01:28:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-22 01:28:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-22 01:28:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-22 01:28:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-22 01:28:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:28:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:28:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-22 01:28:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-22 01:28:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:28:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:28:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:28:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-22 01:28:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-22 01:28:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:28:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:28:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 01:28:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 01:28:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:28:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:28:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:28:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-22 01:28:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-22 01:28:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:28:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:28:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:28:15,824 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:28:15,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:28:17,258 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:28:17,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:28:17,580 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 01:28:17,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:28:17 BoogieIcfgContainer [2022-11-22 01:28:17,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:28:17,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:28:17,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:28:17,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:28:17,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:28:12" (1/3) ... [2022-11-22 01:28:17,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94dd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:28:17, skipping insertion in model container [2022-11-22 01:28:17,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:14" (2/3) ... [2022-11-22 01:28:17,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94dd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:28:17, skipping insertion in model container [2022-11-22 01:28:17,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:28:17" (3/3) ... [2022-11-22 01:28:17,598 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2022-11-22 01:28:17,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:28:17,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:28:17,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:28:17,713 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;@1782c8de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:28:17,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:28:17,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 134 states have internal predecessors, (160), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-11-22 01:28:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:28:17,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:17,732 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:17,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1656000423, now seen corresponding path program 1 times [2022-11-22 01:28:17,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:17,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980883270] [2022-11-22 01:28:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-22 01:28:18,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:18,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980883270] [2022-11-22 01:28:18,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980883270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:18,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501502636] [2022-11-22 01:28:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:18,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:18,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:18,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:18,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:28:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:19,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:28:19,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:28:19,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501502636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:19,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:28:19,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-22 01:28:19,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622556828] [2022-11-22 01:28:19,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:19,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:19,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:19,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:19,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:19,794 INFO L87 Difference]: Start difference. First operand has 252 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 134 states have internal predecessors, (160), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 01:28:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:20,439 INFO L93 Difference]: Finished difference Result 475 states and 690 transitions. [2022-11-22 01:28:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:28:20,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 79 [2022-11-22 01:28:20,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:20,453 INFO L225 Difference]: With dead ends: 475 [2022-11-22 01:28:20,454 INFO L226 Difference]: Without dead ends: 251 [2022-11-22 01:28:20,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 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 01:28:20,462 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 32 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:20,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1123 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:28:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-22 01:28:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-11-22 01:28:20,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 131 states have (on average 1.1908396946564885) internal successors, (156), 134 states have internal predecessors, (156), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2022-11-22 01:28:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 348 transitions. [2022-11-22 01:28:20,529 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 348 transitions. Word has length 79 [2022-11-22 01:28:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:20,530 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 348 transitions. [2022-11-22 01:28:20,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 01:28:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 348 transitions. [2022-11-22 01:28:20,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-22 01:28:20,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:20,534 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:20,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:20,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:20,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1931480043, now seen corresponding path program 1 times [2022-11-22 01:28:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:20,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949907760] [2022-11-22 01:28:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-22 01:28:21,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949907760] [2022-11-22 01:28:21,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949907760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889893397] [2022-11-22 01:28:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:21,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:21,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:21,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:21,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:28:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:28:22,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:28:22,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:22,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889893397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:22,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:28:22,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-22 01:28:22,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642413613] [2022-11-22 01:28:22,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:22,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:28:22,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:28:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:28:22,336 INFO L87 Difference]: Start difference. First operand 251 states and 348 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:28:23,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:23,206 INFO L93 Difference]: Finished difference Result 485 states and 688 transitions. [2022-11-22 01:28:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:23,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2022-11-22 01:28:23,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:23,210 INFO L225 Difference]: With dead ends: 485 [2022-11-22 01:28:23,210 INFO L226 Difference]: Without dead ends: 264 [2022-11-22 01:28:23,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:28:23,213 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 47 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:23,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1633 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:28:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-22 01:28:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2022-11-22 01:28:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-22 01:28:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 373 transitions. [2022-11-22 01:28:23,239 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 373 transitions. Word has length 87 [2022-11-22 01:28:23,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:23,240 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 373 transitions. [2022-11-22 01:28:23,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:28:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 373 transitions. [2022-11-22 01:28:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-22 01:28:23,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:23,248 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:23,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:23,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 01:28:23,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1655956311, now seen corresponding path program 1 times [2022-11-22 01:28:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:23,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123651841] [2022-11-22 01:28:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:23,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:23,552 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:23,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493636688] [2022-11-22 01:28:23,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:23,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:23,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:23,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:23,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:28:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:24,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 2345 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:28:24,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:28:24,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:24,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:24,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123651841] [2022-11-22 01:28:24,217 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:24,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493636688] [2022-11-22 01:28:24,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493636688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:24,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:24,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:28:24,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314702004] [2022-11-22 01:28:24,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:24,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:28:24,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:28:24,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:28:24,220 INFO L87 Difference]: Start difference. First operand 262 states and 373 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-22 01:28:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:24,969 INFO L93 Difference]: Finished difference Result 502 states and 725 transitions. [2022-11-22 01:28:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 96 [2022-11-22 01:28:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:24,973 INFO L225 Difference]: With dead ends: 502 [2022-11-22 01:28:24,973 INFO L226 Difference]: Without dead ends: 270 [2022-11-22 01:28:24,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:28:24,976 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 43 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:24,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1384 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:28:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-22 01:28:24,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2022-11-22 01:28:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-22 01:28:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 373 transitions. [2022-11-22 01:28:25,004 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 373 transitions. Word has length 96 [2022-11-22 01:28:25,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:25,005 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 373 transitions. [2022-11-22 01:28:25,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-22 01:28:25,005 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 373 transitions. [2022-11-22 01:28:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 01:28:25,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:25,009 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:25,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 01:28:25,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:25,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:25,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:25,233 INFO L85 PathProgramCache]: Analyzing trace with hash -805280807, now seen corresponding path program 1 times [2022-11-22 01:28:25,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:25,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757698780] [2022-11-22 01:28:25,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:25,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:25,345 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:25,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386225104] [2022-11-22 01:28:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:25,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:25,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:28:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:25,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:28:25,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-22 01:28:26,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:26,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:26,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757698780] [2022-11-22 01:28:26,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386225104] [2022-11-22 01:28:26,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386225104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:26,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:26,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:28:26,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483492755] [2022-11-22 01:28:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:26,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:28:26,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:26,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:28:26,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:26,055 INFO L87 Difference]: Start difference. First operand 262 states and 373 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-22 01:28:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:27,129 INFO L93 Difference]: Finished difference Result 504 states and 726 transitions. [2022-11-22 01:28:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:28:27,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 104 [2022-11-22 01:28:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:27,133 INFO L225 Difference]: With dead ends: 504 [2022-11-22 01:28:27,133 INFO L226 Difference]: Without dead ends: 272 [2022-11-22 01:28:27,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:28:27,136 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 66 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:27,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1865 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:28:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-22 01:28:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2022-11-22 01:28:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-22 01:28:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 373 transitions. [2022-11-22 01:28:27,175 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 373 transitions. Word has length 104 [2022-11-22 01:28:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:27,176 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 373 transitions. [2022-11-22 01:28:27,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-22 01:28:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 373 transitions. [2022-11-22 01:28:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:28:27,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:27,179 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:27,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:27,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:27,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:27,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:27,380 INFO L85 PathProgramCache]: Analyzing trace with hash -921198593, now seen corresponding path program 1 times [2022-11-22 01:28:27,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:27,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732401019] [2022-11-22 01:28:27,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:27,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:27,463 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:27,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332643325] [2022-11-22 01:28:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:27,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:27,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:27,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:27,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:28:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:28,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:28:28,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 01:28:28,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:28,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:28,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732401019] [2022-11-22 01:28:28,165 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:28,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332643325] [2022-11-22 01:28:28,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332643325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:28,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:28,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:28:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418177998] [2022-11-22 01:28:28,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:28,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:28:28,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:28:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:28:28,168 INFO L87 Difference]: Start difference. First operand 262 states and 373 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-22 01:28:28,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:28,913 INFO L93 Difference]: Finished difference Result 471 states and 678 transitions. [2022-11-22 01:28:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:28,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 113 [2022-11-22 01:28:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:28,916 INFO L225 Difference]: With dead ends: 471 [2022-11-22 01:28:28,916 INFO L226 Difference]: Without dead ends: 264 [2022-11-22 01:28:28,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 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 01:28:28,918 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 62 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:28,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1620 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:28:28,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-22 01:28:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-11-22 01:28:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 140 states have (on average 1.1928571428571428) internal successors, (167), 144 states have internal predecessors, (167), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2022-11-22 01:28:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 376 transitions. [2022-11-22 01:28:28,936 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 376 transitions. Word has length 113 [2022-11-22 01:28:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:28,937 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 376 transitions. [2022-11-22 01:28:28,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-22 01:28:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 376 transitions. [2022-11-22 01:28:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-22 01:28:28,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:28,940 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:28,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:29,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:29,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:29,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1462310819, now seen corresponding path program 1 times [2022-11-22 01:28:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:29,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318401318] [2022-11-22 01:28:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:29,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:29,249 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:29,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210108183] [2022-11-22 01:28:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:29,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:29,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:29,251 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:29,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:28:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:29,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2631 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:28:29,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-22 01:28:30,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:30,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:30,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318401318] [2022-11-22 01:28:30,021 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:30,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210108183] [2022-11-22 01:28:30,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210108183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:30,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:30,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:28:30,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681680962] [2022-11-22 01:28:30,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:30,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:28:30,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:30,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:28:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:28:30,024 INFO L87 Difference]: Start difference. First operand 264 states and 376 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-22 01:28:31,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:31,183 INFO L93 Difference]: Finished difference Result 481 states and 692 transitions. [2022-11-22 01:28:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:28:31,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 129 [2022-11-22 01:28:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:31,186 INFO L225 Difference]: With dead ends: 481 [2022-11-22 01:28:31,186 INFO L226 Difference]: Without dead ends: 272 [2022-11-22 01:28:31,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:28:31,189 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 81 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:31,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2075 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:28:31,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-22 01:28:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2022-11-22 01:28:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 145 states have (on average 1.193103448275862) internal successors, (173), 148 states have internal predecessors, (173), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-11-22 01:28:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 384 transitions. [2022-11-22 01:28:31,206 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 384 transitions. Word has length 129 [2022-11-22 01:28:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:31,207 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 384 transitions. [2022-11-22 01:28:31,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-22 01:28:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 384 transitions. [2022-11-22 01:28:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-22 01:28:31,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:31,210 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:31,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 01:28:31,421 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:31,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1271578795, now seen corresponding path program 1 times [2022-11-22 01:28:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:31,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099838515] [2022-11-22 01:28:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:31,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:31,530 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:31,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347459716] [2022-11-22 01:28:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:31,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:31,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:31,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:31,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:28:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:32,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:28:32,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-22 01:28:32,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:32,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:32,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099838515] [2022-11-22 01:28:32,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:32,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347459716] [2022-11-22 01:28:32,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347459716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:32,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:32,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:28:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7037500] [2022-11-22 01:28:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:32,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:28:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:32,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:28:32,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:32,388 INFO L87 Difference]: Start difference. First operand 270 states and 384 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-22 01:28:33,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:33,414 INFO L93 Difference]: Finished difference Result 493 states and 708 transitions. [2022-11-22 01:28:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:28:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 147 [2022-11-22 01:28:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:33,419 INFO L225 Difference]: With dead ends: 493 [2022-11-22 01:28:33,419 INFO L226 Difference]: Without dead ends: 278 [2022-11-22 01:28:33,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:28:33,421 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 73 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:33,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1871 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:28:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-22 01:28:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2022-11-22 01:28:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 145 states have (on average 1.193103448275862) internal successors, (173), 148 states have internal predecessors, (173), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-11-22 01:28:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 384 transitions. [2022-11-22 01:28:33,445 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 384 transitions. Word has length 147 [2022-11-22 01:28:33,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:33,447 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 384 transitions. [2022-11-22 01:28:33,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-22 01:28:33,447 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 384 transitions. [2022-11-22 01:28:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-22 01:28:33,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:33,452 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:33,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:33,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:28:33,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1967051755, now seen corresponding path program 1 times [2022-11-22 01:28:33,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:33,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543612220] [2022-11-22 01:28:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:33,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:33,784 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:33,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625801132] [2022-11-22 01:28:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:33,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:33,786 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:33,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:28:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:34,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 3003 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 01:28:34,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-22 01:28:34,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:34,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:34,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543612220] [2022-11-22 01:28:34,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:34,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625801132] [2022-11-22 01:28:34,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625801132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:34,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:34,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:28:34,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184068711] [2022-11-22 01:28:34,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:34,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:28:34,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:34,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:28:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:28:34,749 INFO L87 Difference]: Start difference. First operand 270 states and 384 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-22 01:28:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:36,311 INFO L93 Difference]: Finished difference Result 487 states and 698 transitions. [2022-11-22 01:28:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:28:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 163 [2022-11-22 01:28:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:36,314 INFO L225 Difference]: With dead ends: 487 [2022-11-22 01:28:36,314 INFO L226 Difference]: Without dead ends: 272 [2022-11-22 01:28:36,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:28:36,316 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 96 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:36,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 2312 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:28:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-22 01:28:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2022-11-22 01:28:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-11-22 01:28:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 371 transitions. [2022-11-22 01:28:36,336 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 371 transitions. Word has length 163 [2022-11-22 01:28:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:36,339 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 371 transitions. [2022-11-22 01:28:36,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-22 01:28:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 371 transitions. [2022-11-22 01:28:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-22 01:28:36,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:36,343 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:36,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:36,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-22 01:28:36,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:28:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash 349213963, now seen corresponding path program 1 times [2022-11-22 01:28:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:36,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622295746] [2022-11-22 01:28:36,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:36,669 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:28:36,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872973692] [2022-11-22 01:28:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:36,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:36,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:36,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:36,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:28:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:37,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-22 01:28:37,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-22 01:28:38,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:38,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:38,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622295746] [2022-11-22 01:28:38,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:28:38,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872973692] [2022-11-22 01:28:38,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872973692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:38,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:38,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:28:38,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821337420] [2022-11-22 01:28:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:38,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:28:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:38,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:28:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:28:38,320 INFO L87 Difference]: Start difference. First operand 262 states and 371 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-22 01:28:40,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:42,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:44,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:47,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:49,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:51,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:53,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:55,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 01:28:57,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:28:59,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:01,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:03,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 01:29:06,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:08,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:10,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:12,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:29:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:12,307 INFO L93 Difference]: Finished difference Result 569 states and 800 transitions. [2022-11-22 01:29:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:29:12,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 181 [2022-11-22 01:29:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:12,310 INFO L225 Difference]: With dead ends: 569 [2022-11-22 01:29:12,311 INFO L226 Difference]: Without dead ends: 340 [2022-11-22 01:29:12,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 169 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:29:12,313 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 158 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 26 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:12,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1841 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 566 Invalid, 16 Unknown, 0 Unchecked, 33.7s Time] [2022-11-22 01:29:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-22 01:29:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 328. [2022-11-22 01:29:12,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 180 states have (on average 1.2) internal successors, (216), 185 states have internal predecessors, (216), 113 states have call successors, (113), 35 states have call predecessors, (113), 33 states have return successors, (131), 107 states have call predecessors, (131), 110 states have call successors, (131) [2022-11-22 01:29:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 460 transitions. [2022-11-22 01:29:12,339 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 460 transitions. Word has length 181 [2022-11-22 01:29:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:12,339 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 460 transitions. [2022-11-22 01:29:12,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-22 01:29:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 460 transitions. [2022-11-22 01:29:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-22 01:29:12,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:12,342 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:12,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:12,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:12,558 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:12,558 INFO L85 PathProgramCache]: Analyzing trace with hash 391983578, now seen corresponding path program 1 times [2022-11-22 01:29:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:12,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795884940] [2022-11-22 01:29:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:12,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:12,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956070906] [2022-11-22 01:29:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:12,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:12,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:12,669 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:12,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5d5f38-e229-416c-8590-9f8f5821a170/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:29:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:13,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 3269 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-22 01:29:13,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:13,909 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 01:29:14,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-22 01:29:14,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:14,537 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 23 treesize of output 22 [2022-11-22 01:29:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:14,557 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 23 treesize of output 22 [2022-11-22 01:29:14,728 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1304 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1304) |c_#memory_int|)) is different from true [2022-11-22 01:29:14,987 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1305 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1305)) |c_#memory_int|)) is different from true [2022-11-22 01:29:14,997 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1305 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_1305)) |c_#memory_int|)) is different from true [2022-11-22 01:29:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:15,193 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-11-22 01:29:15,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 100 [2022-11-22 01:29:15,212 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:29:15,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:29:15,227 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 8 treesize of output 7 [2022-11-22 01:29:15,265 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 8 treesize of output 7 [2022-11-22 01:29:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:15,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 24 [2022-11-22 01:29:15,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:15,343 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2022-11-22 01:29:15,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-22 01:29:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 154 proven. 28 refuted. 0 times theorem prover too weak. 98 trivial. 5 not checked. [2022-11-22 01:29:15,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:29:19,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:19,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795884940] [2022-11-22 01:29:19,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:19,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956070906] [2022-11-22 01:29:19,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956070906] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:29:19,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [923592574] [2022-11-22 01:29:19,088 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-22 01:29:19,088 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:29:19,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:29:19,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:29:19,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:29:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:22,969 INFO L217 Elim1Store]: Index analysis took 476 ms [2022-11-22 01:29:40,874 WARN L233 SmtUtils]: Spent 17.84s on a formula simplification. DAG size of input: 1758 DAG size of output: 1169 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:29:40,879 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-11-22 01:29:40,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19112 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 195 case distinctions, treesize of input 987 treesize of output 2346 [2022-11-22 01:29:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:44,508 INFO L217 Elim1Store]: Index analysis took 869 ms [2022-11-22 01:30:13,826 WARN L233 SmtUtils]: Spent 29.26s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:30:13,831 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-22 01:30:13,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-22 01:31:44,891 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 01:31:44,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:44,898 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 01:31:44,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:44,903 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 01:31:44,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:44,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:44,914 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 01:31:48,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:31:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 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 01:31:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,914 INFO L217 Elim1Store]: Index analysis took 127 ms [2022-11-22 01:31:49,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-22 01:31:50,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-22 01:31:50,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:50,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:51,062 INFO L217 Elim1Store]: Index analysis took 127 ms [2022-11-22 01:31:51,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-22 01:31:58,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-22 01:31:58,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:58,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 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 01:31:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:59,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-22 01:32:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:32:00,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:00,797 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-22 01:32:00,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-22 01:32:17,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-22 01:32:17,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-22 01:32:17,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:32:17,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-22 01:32:17,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-22 01:32:18,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:32:33,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-22 01:32:33,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-22 01:32:33,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:32:33,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-22 01:32:33,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-22 01:32:33,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:32:36,386 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 01:32:36,520 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 2171 treesize of output 2161 [2022-11-22 01:32:37,007 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 2175 treesize of output 2154 [2022-11-22 01:32:37,191 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 2171 treesize of output 2161 [2022-11-22 01:32:51,380 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 01:32:51,386 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 01:32:51,415 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 01:32:51,419 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 01:32:51,456 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 01:32:51,463 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 01:32:51,473 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 01:32:51,481 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 01:32:51,518 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 01:32:51,548 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:51,548 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 01:32:51,560 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 01:32:51,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:51,621 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 01:32:51,634 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 01:32:51,641 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 01:32:51,692 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 01:32:51,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-22 01:32:51,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-22 01:32:51,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-22 01:32:51,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-22 01:32:53,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2167 treesize of output 2139 [2022-11-22 01:32:54,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2143 treesize of output 2115 [2022-11-22 01:32:54,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2111 treesize of output 2087 [2022-11-22 01:33:11,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2167 treesize of output 2139 [2022-11-22 01:33:11,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2143 treesize of output 2115 [2022-11-22 01:33:11,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2111 treesize of output 2087 [2022-11-22 01:34:06,798 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2895 for LOIs [2022-11-22 01:34:20,049 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2962 for LOIs [2022-11-22 01:35:39,086 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 11 treesize of output 7 [2022-11-22 01:35:39,101 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 11 treesize of output 7 [2022-11-22 01:35:39,127 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 01:35:39,148 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 01:36:02,707 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-11-22 01:36:02,711 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 70 for LOIs [2022-11-22 01:36:02,726 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-11-22 01:36:07,016 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 83 for LOIs [2022-11-22 01:36:07,051 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 01:36:07,077 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 01:36:07,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:07,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:07,186 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:07,187 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 01:36:07,197 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 01:36:07,211 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 01:36:07,313 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 01:36:07,324 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 01:36:07,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:07,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:07,342 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:07,343 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 01:36:07,413 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 01:36:07,591 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 107 for LOIs [2022-11-22 01:36:08,345 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-11-22 01:36:08,380 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:38:20,994 WARN L233 SmtUtils]: Spent 2.17m on a formula simplification. DAG size of input: 2824 DAG size of output: 2436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:42:23,080 WARN L233 SmtUtils]: Spent 3.99m on a formula simplification. DAG size of input: 2895 DAG size of output: 2451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)