./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh --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 c8c1e832189dd055953efd5b59586c9715f7fa12a58718e8966fcba656bebf80 --- 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-2329fc7 [2022-12-14 09:01:04,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:01:04,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:01:04,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:01:04,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:01:04,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:01:04,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:01:04,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:01:04,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:01:04,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:01:04,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:01:04,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:01:04,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:01:04,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:01:04,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:01:04,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:01:04,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:01:04,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:01:04,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:01:04,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:01:04,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:01:04,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:01:04,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:01:04,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:01:04,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:01:04,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:01:04,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:01:04,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:01:04,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:01:04,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:01:04,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:01:04,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:01:04,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:01:04,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:01:04,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:01:04,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:01:04,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:01:04,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:01:04,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:01:04,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:01:04,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:01:04,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:01:04,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:01:04,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:01:04,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:01:04,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:01:04,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:01:04,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:01:04,314 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:01:04,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:01:04,314 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:01:04,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:01:04,314 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:01:04,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:01:04,315 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:01:04,315 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:01:04,315 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:01:04,315 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:01:04,316 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:01:04,316 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:01:04,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:01:04,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:01:04,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:01:04,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:01:04,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:01:04,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:01:04,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:01:04,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:01:04,319 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8c1e832189dd055953efd5b59586c9715f7fa12a58718e8966fcba656bebf80 [2022-12-14 09:01:04,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:01:04,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:01:04,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:01:04,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:01:04,531 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:01:04,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i [2022-12-14 09:01:07,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:01:07,471 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:01:07,472 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i [2022-12-14 09:01:07,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/data/fcfffdbe0/f9b0b6729d934db4ae560c1b126be319/FLAG963d535ab [2022-12-14 09:01:07,514 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/data/fcfffdbe0/f9b0b6729d934db4ae560c1b126be319 [2022-12-14 09:01:07,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:01:07,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:01:07,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:01:07,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:01:07,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:01:07,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:01:07" (1/1) ... [2022-12-14 09:01:07,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f43f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:07, skipping insertion in model container [2022-12-14 09:01:07,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:01:07" (1/1) ... [2022-12-14 09:01:07,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:01:07,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:01:07,846 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i[4501,4514] [2022-12-14 09:01:07,854 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i[4561,4574] [2022-12-14 09:01:08,594 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:01:08,627 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:08,637 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:08,642 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,643 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,643 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,644 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,644 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,648 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:08,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,656 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:08,724 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:08,724 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:08,725 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:08,729 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:01:08,731 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:01:08,731 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:01:08,841 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:08,947 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:01:08,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:01:08,949 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:01:08,950 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:01:08,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:01:08,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:01:08,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:01:08,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:01:08,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:01:08,955 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:01:08,955 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:01:09,083 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,085 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,108 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,128 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:01:09,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:01:09,156 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:01:09,167 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i[4501,4514] [2022-12-14 09:01:09,167 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_0e4d095a-8577-4c96-bde8-bce2a9ce028d/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness_negated.i[4561,4574] [2022-12-14 09:01:09,199 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:01:09,204 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,210 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,215 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,215 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,216 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,218 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,225 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,225 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,232 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:09,232 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:09,232 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:01:09,235 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:01:09,236 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:01:09,236 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:01:09,238 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,258 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:01:09,258 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:01:09,259 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:01:09,260 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:01:09,261 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:01:09,262 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:01:09,262 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:01:09,262 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:01:09,263 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:01:09,263 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:01:09,264 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:01:09,292 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,293 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,294 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,294 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:01:09,301 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:01:09,313 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:01:09,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:01:09,463 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:01:09,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09 WrapperNode [2022-12-14 09:01:09,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:01:09,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:01:09,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:01:09,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:01:09,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,571 INFO L138 Inliner]: procedures = 689, calls = 1496, calls flagged for inlining = 55, calls inlined = 9, statements flattened = 597 [2022-12-14 09:01:09,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:01:09,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:01:09,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:01:09,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:01:09,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,629 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:01:09,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:01:09,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:01:09,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:01:09,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (1/1) ... [2022-12-14 09:01:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:01:09,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:01:09,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:01:09,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:01:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-14 09:01:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-14 09:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 09:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 09:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 09:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 09:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 09:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 09:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 09:01:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 09:01:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:01:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:01:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2022-12-14 09:01:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2022-12-14 09:01:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 09:01:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 09:01:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 09:01:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 09:01:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-14 09:01:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-14 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-12-14 09:01:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-12-14 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 09:01:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:01:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 09:01:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 09:01:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 09:01:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 09:01:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:01:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-12-14 09:01:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-12-14 09:01:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-12-14 09:01:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-12-14 09:01:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 09:01:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 09:01:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:01:09,939 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:01:09,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:01:10,578 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:01:10,721 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:01:10,721 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 09:01:10,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:01:10 BoogieIcfgContainer [2022-12-14 09:01:10,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:01:10,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:01:10,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:01:10,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:01:10,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:01:07" (1/3) ... [2022-12-14 09:01:10,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af39eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:01:10, skipping insertion in model container [2022-12-14 09:01:10,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:01:09" (2/3) ... [2022-12-14 09:01:10,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af39eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:01:10, skipping insertion in model container [2022-12-14 09:01:10,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:01:10" (3/3) ... [2022-12-14 09:01:10,731 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness_negated.i [2022-12-14 09:01:10,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:01:10,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:01:10,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:01:10,803 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;@203dddd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:01:10,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:01:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-12-14 09:01:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 09:01:10,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:10,821 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1] [2022-12-14 09:01:10,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:10,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:10,826 INFO L85 PathProgramCache]: Analyzing trace with hash 302334839, now seen corresponding path program 1 times [2022-12-14 09:01:10,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:10,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115010602] [2022-12-14 09:01:10,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:10,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:11,189 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-14 09:01:11,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:11,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115010602] [2022-12-14 09:01:11,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115010602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:11,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:11,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:01:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686184093] [2022-12-14 09:01:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:11,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:01:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:01:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:01:11,227 INFO L87 Difference]: Start difference. First operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:01:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:11,489 INFO L93 Difference]: Finished difference Result 199 states and 255 transitions. [2022-12-14 09:01:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:01:11,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-12-14 09:01:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:11,501 INFO L225 Difference]: With dead ends: 199 [2022-12-14 09:01:11,501 INFO L226 Difference]: Without dead ends: 124 [2022-12-14 09:01:11,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:01:11,507 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:11,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:01:11,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-14 09:01:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-12-14 09:01:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 73 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-12-14 09:01:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2022-12-14 09:01:11,549 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 82 [2022-12-14 09:01:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:11,550 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2022-12-14 09:01:11,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:01:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2022-12-14 09:01:11,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 09:01:11,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:11,555 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:11,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:01:11,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:11,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:11,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1397942290, now seen corresponding path program 1 times [2022-12-14 09:01:11,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:11,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368933146] [2022-12-14 09:01:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:11,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 09:01:12,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:12,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368933146] [2022-12-14 09:01:12,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368933146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:12,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:12,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:01:12,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742868867] [2022-12-14 09:01:12,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:12,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:01:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:01:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:01:12,018 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 09:01:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:12,352 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2022-12-14 09:01:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:01:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 95 [2022-12-14 09:01:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:12,354 INFO L225 Difference]: With dead ends: 200 [2022-12-14 09:01:12,354 INFO L226 Difference]: Without dead ends: 124 [2022-12-14 09:01:12,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:01:12,356 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:12,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 463 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:01:12,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-14 09:01:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-12-14 09:01:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 73 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-12-14 09:01:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2022-12-14 09:01:12,369 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 95 [2022-12-14 09:01:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:12,370 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2022-12-14 09:01:12,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 09:01:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2022-12-14 09:01:12,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 09:01:12,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:12,373 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:12,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:01:12,373 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:12,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1657397374, now seen corresponding path program 1 times [2022-12-14 09:01:12,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:12,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639058413] [2022-12-14 09:01:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:12,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 09:01:12,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:12,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639058413] [2022-12-14 09:01:12,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639058413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:12,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:12,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:01:12,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450444885] [2022-12-14 09:01:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:12,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:01:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:12,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:01:12,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:12,911 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-14 09:01:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:13,414 INFO L93 Difference]: Finished difference Result 211 states and 265 transitions. [2022-12-14 09:01:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:01:13,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 103 [2022-12-14 09:01:13,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:13,417 INFO L225 Difference]: With dead ends: 211 [2022-12-14 09:01:13,417 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 09:01:13,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:01:13,419 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:13,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 700 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:01:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 09:01:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-12-14 09:01:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 75 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-12-14 09:01:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 157 transitions. [2022-12-14 09:01:13,434 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 157 transitions. Word has length 103 [2022-12-14 09:01:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:13,434 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 157 transitions. [2022-12-14 09:01:13,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-14 09:01:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 157 transitions. [2022-12-14 09:01:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 09:01:13,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:13,437 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:13,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:01:13,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:13,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:13,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2091627990, now seen corresponding path program 1 times [2022-12-14 09:01:13,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:13,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228934045] [2022-12-14 09:01:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:13,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:13,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:01:13,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868389695] [2022-12-14 09:01:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:13,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:01:13,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:01:13,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:01:13,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:01:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:13,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2391 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:01:13,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:01:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 09:01:13,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:01:13,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:13,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228934045] [2022-12-14 09:01:13,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:01:13,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868389695] [2022-12-14 09:01:13,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868389695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:13,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:13,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:01:13,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268429224] [2022-12-14 09:01:13,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:13,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:01:13,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:01:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:01:13,985 INFO L87 Difference]: Start difference. First operand 126 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-14 09:01:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:14,274 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2022-12-14 09:01:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:01:14,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 112 [2022-12-14 09:01:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:14,276 INFO L225 Difference]: With dead ends: 205 [2022-12-14 09:01:14,276 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 09:01:14,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:14,277 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 28 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:14,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 560 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:01:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 09:01:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-12-14 09:01:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-12-14 09:01:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2022-12-14 09:01:14,286 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 112 [2022-12-14 09:01:14,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:14,286 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2022-12-14 09:01:14,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-14 09:01:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2022-12-14 09:01:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 09:01:14,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:14,288 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:14,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:01:14,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 09:01:14,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:14,489 INFO L85 PathProgramCache]: Analyzing trace with hash -374318214, now seen corresponding path program 1 times [2022-12-14 09:01:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:14,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973366342] [2022-12-14 09:01:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:14,538 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:01:14,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955466607] [2022-12-14 09:01:14,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:14,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:01:14,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:01:14,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:01:14,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:01:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:14,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2445 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 09:01:14,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:01:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-14 09:01:15,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:01:15,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:15,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973366342] [2022-12-14 09:01:15,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:01:15,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955466607] [2022-12-14 09:01:15,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955466607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:15,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:15,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:01:15,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248906927] [2022-12-14 09:01:15,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:15,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:01:15,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:15,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:01:15,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:15,034 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-12-14 09:01:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:15,526 INFO L93 Difference]: Finished difference Result 210 states and 259 transitions. [2022-12-14 09:01:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:01:15,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 120 [2022-12-14 09:01:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:15,527 INFO L225 Difference]: With dead ends: 210 [2022-12-14 09:01:15,527 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 09:01:15,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:01:15,528 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 42 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:15,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 766 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:01:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 09:01:15,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-12-14 09:01:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2022-12-14 09:01:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 155 transitions. [2022-12-14 09:01:15,535 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 155 transitions. Word has length 120 [2022-12-14 09:01:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:15,536 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 155 transitions. [2022-12-14 09:01:15,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-12-14 09:01:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 155 transitions. [2022-12-14 09:01:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-14 09:01:15,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:15,537 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:15,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:01:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:01:15,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:01:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:15,738 INFO L85 PathProgramCache]: Analyzing trace with hash -805476928, now seen corresponding path program 1 times [2022-12-14 09:01:15,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:15,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788900563] [2022-12-14 09:01:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:15,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:01:15,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707996862] [2022-12-14 09:01:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:15,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:01:15,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:01:15,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:01:15,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4d095a-8577-4c96-bde8-bce2a9ce028d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:01:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:16,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 133 conjunts are in the unsatisfiable core [2022-12-14 09:01:16,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:01:16,257 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 [2022-12-14 09:01:16,791 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:01:16,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2022-12-14 09:01:18,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:01:18,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:01:18,893 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 34 treesize of output 36 [2022-12-14 09:01:21,552 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_348 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_348) |c_#memory_int|)) is different from true [2022-12-14 09:01:21,776 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 53 treesize of output 47 [2022-12-14 09:01:21,785 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 47 treesize of output 41 [2022-12-14 09:01:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 29 proven. 10 refuted. 3 times theorem prover too weak. 23 trivial. 2 not checked. [2022-12-14 09:01:22,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:01:22,899 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 9 treesize of output 3 [2022-12-14 09:01:22,900 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 09:01:22,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:22,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788900563] [2022-12-14 09:01:22,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:01:22,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707996862] [2022-12-14 09:01:22,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707996862] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:01:22,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [139923281] [2022-12-14 09:01:23,002 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-12-14 09:01:23,002 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:01:23,005 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:01:23,010 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:01:23,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:01:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:01:26,023 INFO L217 Elim1Store]: Index analysis took 306 ms [2022-12-14 09:01:37,341 WARN L233 SmtUtils]: Spent 11.27s 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) [2022-12-14 09:01:37,344 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-12-14 09:01:37,347 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 [2022-12-14 09:01:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:01:40,058 INFO L217 Elim1Store]: Index analysis took 554 ms [2022-12-14 09:01:56,401 WARN L233 SmtUtils]: Spent 16.31s 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) [2022-12-14 09:01:56,404 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-12-14 09:01:56,407 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 [2022-12-14 09:03:19,239 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 [2022-12-14 09:03:19,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:19,243 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 [2022-12-14 09:03:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:19,247 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 [2022-12-14 09:03:19,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:19,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:19,255 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 [2022-12-14 09:03:22,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,166 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 [2022-12-14 09:03:22,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:22,679 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 [2022-12-14 09:03:23,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,105 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 [2022-12-14 09:03:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,683 INFO L217 Elim1Store]: Index analysis took 131 ms [2022-12-14 09:03:23,704 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 [2022-12-14 09:03:23,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:23,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:24,045 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 [2022-12-14 09:03:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,210 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 [2022-12-14 09:03:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,546 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 [2022-12-14 09:03:31,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:31,838 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 [2022-12-14 09:03:32,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,437 INFO L217 Elim1Store]: Index analysis took 112 ms [2022-12-14 09:03:32,456 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 [2022-12-14 09:03:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:03:32,971 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-12-14 09:03:32,986 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 [2022-12-14 09:03:48,557 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 [2022-12-14 09:03:48,595 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 [2022-12-14 09:03:48,642 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 [2022-12-14 09:03:48,907 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 [2022-12-14 09:03:48,950 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 [2022-12-14 09:03:49,002 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 [2022-12-14 09:04:03,142 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 [2022-12-14 09:04:03,179 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 [2022-12-14 09:04:03,265 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 [2022-12-14 09:04:03,492 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 [2022-12-14 09:04:03,530 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 [2022-12-14 09:04:03,621 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 [2022-12-14 09:04:06,010 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 [2022-12-14 09:04:06,114 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 [2022-12-14 09:04:06,472 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 [2022-12-14 09:04:06,659 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 [2022-12-14 09:04:20,234 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 [2022-12-14 09:04:20,238 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 [2022-12-14 09:04:20,255 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 [2022-12-14 09:04:20,258 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 [2022-12-14 09:04:20,281 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 [2022-12-14 09:04:20,286 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 [2022-12-14 09:04:20,294 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 [2022-12-14 09:04:20,300 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 [2022-12-14 09:04:20,326 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 [2022-12-14 09:04:20,331 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 [2022-12-14 09:04:20,354 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:04:20,355 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 [2022-12-14 09:04:20,406 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:04:20,407 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 [2022-12-14 09:04:20,414 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 [2022-12-14 09:04:20,419 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 [2022-12-14 09:04:20,530 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 [2022-12-14 09:04:20,603 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 [2022-12-14 09:04:20,605 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 [2022-12-14 09:04:20,660 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 [2022-12-14 09:04:20,662 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 [2022-12-14 09:04:22,264 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 [2022-12-14 09:04:22,532 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 [2022-12-14 09:04:22,712 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 [2022-12-14 09:04:37,918 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 [2022-12-14 09:04:38,179 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 2135 treesize of output 2111 [2022-12-14 09:04:38,279 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 2119 treesize of output 2091 [2022-12-14 09:05:32,427 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_clean_up with input of size 69 for LOIs [2022-12-14 09:05:32,451 INFO L197 IcfgInterpreter]: Interpreting procedure aws_is_mem_zeroed with input of size 51 for LOIs [2022-12-14 09:05:32,461 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2896 for LOIs [2022-12-14 09:05:45,756 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-12-14 09:05:49,703 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 83 for LOIs [2022-12-14 09:05:49,737 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 [2022-12-14 09:05:49,747 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 [2022-12-14 09:05:49,806 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 [2022-12-14 09:05:49,821 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 [2022-12-14 09:05:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:05:49,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:05:49,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:05:49,844 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 [2022-12-14 09:05:49,915 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 [2022-12-14 09:05:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:05:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:05:49,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:05:49,930 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 [2022-12-14 09:05:49,939 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 [2022-12-14 09:05:49,996 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 [2022-12-14 09:05:50,133 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 107 for LOIs [2022-12-14 09:05:50,684 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-12-14 09:05:50,710 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2967 for LOIs [2022-12-14 09:07:09,174 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 [2022-12-14 09:07:09,179 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 [2022-12-14 09:07:09,185 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 [2022-12-14 09:07:09,192 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 [2022-12-14 09:07:31,228 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-12-14 09:07:31,230 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2022-12-14 09:07:31,232 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:09:24,358 WARN L233 SmtUtils]: Spent 1.85m on a formula simplification. DAG size of input: 2825 DAG size of output: 2437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:12:33,468 WARN L233 SmtUtils]: Spent 3.10m on a formula simplification. DAG size of input: 2896 DAG size of output: 2433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)