./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/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_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/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_fb97e5f5-36b9-4877-9a52-df6361062a75/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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- 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 09:30:09,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:30:09,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:30:09,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:30:09,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:30:09,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:30:09,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:30:09,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:30:09,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:30:09,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:30:09,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:30:09,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:30:09,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:30:09,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:30:09,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:30:09,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:30:09,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:30:09,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:30:09,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:30:09,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:30:09,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:30:09,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:30:09,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:30:09,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:30:09,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:30:09,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:30:09,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:30:09,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:30:09,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:30:09,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:30:09,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:30:09,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:30:09,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:30:09,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:30:09,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:30:09,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:30:09,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:30:09,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:30:09,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:30:09,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:30:09,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:30:09,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:30:09,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:30:09,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:30:09,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:30:09,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:30:09,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:30:09,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:30:09,702 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:30:09,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:30:09,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:30:09,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:30:09,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:30:09,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:30:09,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:30:09,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:30:09,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:30:09,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:30:09,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:30:09,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:30:09,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:30:09,706 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_fb97e5f5-36b9-4877-9a52-df6361062a75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2022-12-14 09:30:09,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:30:09,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:30:09,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:30:09,921 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:30:09,921 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:30:09,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2022-12-14 09:30:12,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:30:12,836 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:30:12,837 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2022-12-14 09:30:12,856 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/data/4c18a980b/a69151531ec14e9bbc113656e1cc25b6/FLAGa394110cd [2022-12-14 09:30:13,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/data/4c18a980b/a69151531ec14e9bbc113656e1cc25b6 [2022-12-14 09:30:13,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:30:13,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:30:13,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:30:13,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:30:13,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:30:13,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:30:13" (1/1) ... [2022-12-14 09:30:13,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e567cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:13, skipping insertion in model container [2022-12-14 09:30:13,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:30:13" (1/1) ... [2022-12-14 09:30:13,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:30:13,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:30:13,325 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_fb97e5f5-36b9-4877-9a52-df6361062a75/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2022-12-14 09:30:13,331 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_fb97e5f5-36b9-4877-9a52-df6361062a75/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2022-12-14 09:30:13,911 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:30:13,955 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:13,965 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:13,970 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,973 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,976 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:13,982 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,983 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,984 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:13,985 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,056 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,057 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,057 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,061 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:30:14,062 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:30:14,062 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:30:14,175 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,276 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:30:14,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:30:14,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:30:14,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:30:14,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:30:14,280 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:30:14,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:30:14,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:30:14,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:30:14,282 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:30:14,282 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:30:14,420 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,421 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,422 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,422 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,438 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,451 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:30:14,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:30:14,474 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:30:14,482 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_fb97e5f5-36b9-4877-9a52-df6361062a75/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2022-12-14 09:30:14,483 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_fb97e5f5-36b9-4877-9a52-df6361062a75/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2022-12-14 09:30:14,514 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:30:14,520 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,526 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,529 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,529 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,531 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,534 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,548 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,549 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,549 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:30:14,553 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:30:14,554 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:30:14,555 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:30:14,557 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,575 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:30:14,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:30:14,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:30:14,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:30:14,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:30:14,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:30:14,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:30:14,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:30:14,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:30:14,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:30:14,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:30:14,606 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,607 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,608 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,608 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:30:14,614 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 09:30:14,626 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:30:14,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:30:14,862 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:30:14,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14 WrapperNode [2022-12-14 09:30:14,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:30:14,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:30:14,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:30:14,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:30:14,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:14,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:14,969 INFO L138 Inliner]: procedures = 689, calls = 1535, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 691 [2022-12-14 09:30:14,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:30:14,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:30:14,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:30:14,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:30:14,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:14,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:14,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:14,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:30:15,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:30:15,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:30:15,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:30:15,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (1/1) ... [2022-12-14 09:30:15,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:30:15,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:15,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:30:15,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:30:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-14 09:30:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-14 09:30:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:30:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 09:30:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 09:30:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 09:30:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 09:30:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 09:30:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 09:30:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 09:30:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:30:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 09:30:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 09:30:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 09:30:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 09:30:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-14 09:30:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 09:30:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:30:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 09:30:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 09:30:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2022-12-14 09:30:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 09:30:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 09:30:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:30:15,330 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:30:15,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:30:16,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:30:16,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:30:16,160 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:30:16,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:30:16 BoogieIcfgContainer [2022-12-14 09:30:16,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:30:16,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:30:16,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:30:16,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:30:16,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:30:13" (1/3) ... [2022-12-14 09:30:16,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378bc8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:30:16, skipping insertion in model container [2022-12-14 09:30:16,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:14" (2/3) ... [2022-12-14 09:30:16,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378bc8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:30:16, skipping insertion in model container [2022-12-14 09:30:16,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:30:16" (3/3) ... [2022-12-14 09:30:16,170 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2022-12-14 09:30:16,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:30:16,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:30:16,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:30:16,243 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;@3dfcaa82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:30:16,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:30:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-12-14 09:30:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 09:30:16,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:16,261 INFO L195 NwaCegarLoop]: trace histogram [7, 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] [2022-12-14 09:30:16,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2028784662, now seen corresponding path program 1 times [2022-12-14 09:30:16,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:16,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706030725] [2022-12-14 09:30:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:16,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:16,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530560613] [2022-12-14 09:30:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:16,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:16,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:16,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:30:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:17,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2266 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:30:17,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 09:30:17,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:17,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:17,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706030725] [2022-12-14 09:30:17,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:17,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530560613] [2022-12-14 09:30:17,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530560613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:17,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:17,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:17,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892369195] [2022-12-14 09:30:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:17,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:17,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:17,172 INFO L87 Difference]: Start difference. First operand has 134 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 09:30:17,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:17,508 INFO L93 Difference]: Finished difference Result 234 states and 312 transitions. [2022-12-14 09:30:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:30:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 87 [2022-12-14 09:30:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:17,517 INFO L225 Difference]: With dead ends: 234 [2022-12-14 09:30:17,517 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 09:30:17,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 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 09:30:17,522 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 22 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:17,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 507 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:30:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 09:30:17,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-14 09:30:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 76 states have internal predecessors, (88), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 09:30:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-12-14 09:30:17,557 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 87 [2022-12-14 09:30:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:17,558 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-12-14 09:30:17,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 09:30:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-12-14 09:30:17,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 09:30:17,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:17,561 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:30:17,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:30:17,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 09:30:17,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:17,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:17,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1535738540, now seen corresponding path program 1 times [2022-12-14 09:30:17,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:17,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470992439] [2022-12-14 09:30:17,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:17,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:17,869 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:17,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713509823] [2022-12-14 09:30:17,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:17,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:17,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:17,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:17,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:30:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:18,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2316 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:30:18,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 09:30:18,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:18,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:18,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470992439] [2022-12-14 09:30:18,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:18,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713509823] [2022-12-14 09:30:18,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713509823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:18,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:18,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:30:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831825910] [2022-12-14 09:30:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:18,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:30:18,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:30:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:30:18,304 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-14 09:30:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:18,731 INFO L93 Difference]: Finished difference Result 241 states and 311 transitions. [2022-12-14 09:30:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:18,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 95 [2022-12-14 09:30:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:18,736 INFO L225 Difference]: With dead ends: 241 [2022-12-14 09:30:18,736 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 09:30:18,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:30:18,737 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 35 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:18,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 757 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:30:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 09:30:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 09:30:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-12-14 09:30:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2022-12-14 09:30:18,748 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 95 [2022-12-14 09:30:18,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:18,749 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2022-12-14 09:30:18,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-14 09:30:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2022-12-14 09:30:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 09:30:18,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:18,750 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 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] [2022-12-14 09:30:18,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:30:18,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:18,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:18,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1862882219, now seen corresponding path program 1 times [2022-12-14 09:30:18,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314590079] [2022-12-14 09:30:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:19,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:19,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584826874] [2022-12-14 09:30:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:19,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:19,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:19,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:30:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:19,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 2448 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:30:19,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 09:30:19,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:19,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:19,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314590079] [2022-12-14 09:30:19,528 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:19,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584826874] [2022-12-14 09:30:19,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584826874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:19,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:19,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:30:19,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001932963] [2022-12-14 09:30:19,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:19,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:30:19,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:19,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:30:19,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:30:19,531 INFO L87 Difference]: Start difference. First operand 134 states and 171 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 09:30:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:19,774 INFO L93 Difference]: Finished difference Result 235 states and 301 transitions. [2022-12-14 09:30:19,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:30:19,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 104 [2022-12-14 09:30:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:19,776 INFO L225 Difference]: With dead ends: 235 [2022-12-14 09:30:19,776 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 09:30:19,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 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 09:30:19,778 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 32 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:19,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 612 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:30:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 09:30:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 09:30:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-12-14 09:30:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-12-14 09:30:19,793 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 104 [2022-12-14 09:30:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:19,794 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-12-14 09:30:19,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 09:30:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-12-14 09:30:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 09:30:19,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:19,797 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:30:19,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:30:19,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:19,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:19,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash -277411090, now seen corresponding path program 1 times [2022-12-14 09:30:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:20,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930759069] [2022-12-14 09:30:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:20,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:20,109 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:20,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062142320] [2022-12-14 09:30:20,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:20,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:20,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:20,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:30:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:20,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:30:20,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-14 09:30:20,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:20,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930759069] [2022-12-14 09:30:20,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062142320] [2022-12-14 09:30:20,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062142320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:20,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:20,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:30:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396303286] [2022-12-14 09:30:20,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:20,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:30:20,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:20,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:30:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:20,557 INFO L87 Difference]: Start difference. First operand 134 states and 170 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-12-14 09:30:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:21,053 INFO L93 Difference]: Finished difference Result 240 states and 306 transitions. [2022-12-14 09:30:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:30:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 112 [2022-12-14 09:30:21,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:21,056 INFO L225 Difference]: With dead ends: 240 [2022-12-14 09:30:21,056 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 09:30:21,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 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 09:30:21,058 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 46 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:21,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 833 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:30:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 09:30:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 09:30:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2022-12-14 09:30:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2022-12-14 09:30:21,069 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 112 [2022-12-14 09:30:21,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:21,069 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2022-12-14 09:30:21,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-12-14 09:30:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2022-12-14 09:30:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 09:30:21,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:21,071 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:30:21,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:30:21,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 09:30:21,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:21,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:21,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1315925753, now seen corresponding path program 2 times [2022-12-14 09:30:21,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:21,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768219686] [2022-12-14 09:30:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:21,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:21,388 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:21,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477664116] [2022-12-14 09:30:21,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:30:21,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:21,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:21,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:30:21,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 09:30:21,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:30:21,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 09:30:21,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-14 09:30:21,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:21,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:21,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768219686] [2022-12-14 09:30:21,981 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:21,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477664116] [2022-12-14 09:30:21,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477664116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:21,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:21,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:21,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790897463] [2022-12-14 09:30:21,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:21,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:21,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:21,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:21,983 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 5 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 09:30:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:22,196 INFO L93 Difference]: Finished difference Result 213 states and 267 transitions. [2022-12-14 09:30:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:30:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 121 [2022-12-14 09:30:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:22,198 INFO L225 Difference]: With dead ends: 213 [2022-12-14 09:30:22,198 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 09:30:22,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:22,199 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:22,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 545 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:30:22,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 09:30:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 09:30:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2022-12-14 09:30:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 168 transitions. [2022-12-14 09:30:22,211 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 168 transitions. Word has length 121 [2022-12-14 09:30:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:22,211 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 168 transitions. [2022-12-14 09:30:22,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 09:30:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 168 transitions. [2022-12-14 09:30:22,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 09:30:22,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:22,214 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:30:22,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:30:22,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:22,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1440890814, now seen corresponding path program 3 times [2022-12-14 09:30:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:22,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055989601] [2022-12-14 09:30:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:22,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:22,531 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:22,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865320823] [2022-12-14 09:30:22,531 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:30:22,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:22,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:22,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:22,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:30:22,990 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:30:22,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:30:22,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:30:23,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-12-14 09:30:23,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:30:23,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055989601] [2022-12-14 09:30:23,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865320823] [2022-12-14 09:30:23,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865320823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:23,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:23,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:30:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886503027] [2022-12-14 09:30:23,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:23,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:30:23,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:30:23,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:30:23,065 INFO L87 Difference]: Start difference. First operand 134 states and 168 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 09:30:23,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:23,408 INFO L93 Difference]: Finished difference Result 210 states and 260 transitions. [2022-12-14 09:30:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:30:23,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 130 [2022-12-14 09:30:23,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:23,410 INFO L225 Difference]: With dead ends: 210 [2022-12-14 09:30:23,410 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 09:30:23,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:23,412 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 14 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:23,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 613 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:30:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 09:30:23,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-14 09:30:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 75 states have (on average 1.1466666666666667) internal successors, (86), 76 states have internal predecessors, (86), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 09:30:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2022-12-14 09:30:23,423 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 130 [2022-12-14 09:30:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:23,423 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2022-12-14 09:30:23,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 09:30:23,424 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2022-12-14 09:30:23,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 09:30:23,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:23,426 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-14 09:30:23,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 09:30:23,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:23,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:23,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1420290105, now seen corresponding path program 1 times [2022-12-14 09:30:23,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:23,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708791706] [2022-12-14 09:30:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:23,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:23,727 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:30:23,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858546201] [2022-12-14 09:30:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:23,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:30:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:23,728 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:30:23,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb97e5f5-36b9-4877-9a52-df6361062a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:30:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:24,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 91 conjunts are in the unsatisfiable core [2022-12-14 09:30:24,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:30:25,239 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 09:30:25,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2022-12-14 09:30:25,250 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 09:30:25,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2022-12-14 09:30:25,257 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 09:30:25,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2022-12-14 09:30:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 84 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-14 09:30:25,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:30:27,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:27,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708791706] [2022-12-14 09:30:27,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:30:27,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858546201] [2022-12-14 09:30:27,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858546201] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:30:27,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1015832092] [2022-12-14 09:30:27,989 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 09:30:27,989 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:30:27,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:30:27,996 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:30:27,996 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:30:30,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:30,586 INFO L217 Elim1Store]: Index analysis took 223 ms [2022-12-14 09:30:49,688 WARN L233 SmtUtils]: Spent 19.06s 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 09:30:49,692 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-12-14 09:30:49,694 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 09:30:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:53,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19307 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 0 case distinctions, treesize of input 987 treesize of output 1574 [2022-12-14 09:32:11,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:11,932 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 09:32:11,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:11,936 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 09:32:11,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:11,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:11,945 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 09:32:11,951 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 09:32:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:14,914 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 09:32:15,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:15,326 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 09:32:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:15,797 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 09:32:16,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,147 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 09:32:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:16,556 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 09:32:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:23,796 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 09:32:24,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,297 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 09:32:24,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:24,715 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 09:32:25,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,084 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 09:32:25,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:25,459 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 09:32:40,507 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 09:32:40,607 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 09:32:40,645 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 09:32:40,857 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 09:32:40,956 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 09:32:40,994 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 09:32:54,585 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 09:32:54,624 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 09:32:54,699 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 09:32:54,937 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 09:32:54,975 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 09:32:55,051 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 09:32:57,470 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 09:32:57,812 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 09:32:57,991 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 09:32:58,954 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 09:33:10,870 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 09:33:10,876 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 09:33:10,895 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 09:33:10,898 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 09:33:10,919 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 09:33:10,924 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 09:33:10,930 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 09:33:10,937 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 09:33:10,974 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:10,975 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 09:33:10,983 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 09:33:10,990 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 09:33:11,021 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 09:33:11,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:11,042 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 09:33:11,050 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 09:33:11,132 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 09:33:11,151 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 09:33:11,153 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 09:33:11,203 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 09:33:11,205 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 09:33:12,731 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 09:33:12,995 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 09:33:13,099 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 09:33:28,203 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 09:33:28,460 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 09:33:28,633 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 09:33:31,166 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:33:31,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-12-14 09:33:31,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 09:33:31,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,269 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:33:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:33:31,299 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 79 treesize of output 47 [2022-12-14 09:33:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,333 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:33:31,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:33:31,460 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 79 treesize of output 47 [2022-12-14 09:33:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,568 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:33:31,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 09:33:31,605 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:33:31,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-12-14 09:33:31,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 13 [2022-12-14 09:33:31,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 13 [2022-12-14 09:33:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,853 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:33:31,871 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:33:31,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2022-12-14 09:33:32,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:33:32,211 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 19 treesize of output 13 [2022-12-14 09:33:32,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:33:32,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:33:32,460 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 19 treesize of output 13 [2022-12-14 09:33:32,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:33:32,756 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 21 treesize of output 9 [2022-12-14 09:33:32,976 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 21 treesize of output 9 [2022-12-14 09:34:23,645 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2022-12-14 09:34:23,654 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2895 for LOIs [2022-12-14 09:34:36,756 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_array with input of size 208 for LOIs [2022-12-14 09:34:36,959 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-12-14 09:34:40,870 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 725 for LOIs [2022-12-14 09:34:41,841 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 09:34:42,141 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 09:34:43,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1056 treesize of output 1057 [2022-12-14 09:34:43,214 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 1051 treesize of output 1054 [2022-12-14 09:34:43,680 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 09:34:44,218 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 09:34:45,995 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 09:34:46,019 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 09:34:46,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:46,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:34:46,161 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 09:34:47,467 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 1056 treesize of output 1059 [2022-12-14 09:34:47,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1053 treesize of output 1054 [2022-12-14 09:34:48,178 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 09:34:48,527 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 09:34:50,280 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 09:34:50,306 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 09:34:50,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:50,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:50,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:34:50,449 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 09:34:51,319 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 09:34:52,057 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 1056 treesize of output 1059 [2022-12-14 09:34:52,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1053 treesize of output 1054 [2022-12-14 09:34:52,810 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 09:34:52,952 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 09:34:54,062 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 723 for LOIs [2022-12-14 09:35:02,631 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 712 for LOIs [2022-12-14 09:35:03,404 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2963 for LOIs [2022-12-14 09:36:20,104 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 09:36:20,109 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 09:36:20,113 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 09:36:20,117 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 09:36:41,486 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-12-14 09:36:41,489 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 70 for LOIs [2022-12-14 09:36:41,496 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:38:16,000 WARN L233 SmtUtils]: Spent 1.56m 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 09:41:29,997 WARN L233 SmtUtils]: Spent 3.17m on a formula simplification. DAG size of input: 2895 DAG size of output: 2433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:40,121 WARN L233 SmtUtils]: Spent 3.14m on a formula simplification. DAG size of input: 2936 DAG size of output: 2476 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)