./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.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_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/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_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/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_4e0a6131-a08c-4789-8883-6577f1460a76/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 d1c49d4b020f9f5d6a4b38e5d9ce283ad63371da49a07c74ee4277370ba262dd --- 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 14:48:04,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:48:04,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:48:04,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:48:04,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:48:04,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:48:04,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:48:04,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:48:04,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:48:04,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:48:04,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:48:04,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:48:04,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:48:04,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:48:04,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:48:04,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:48:04,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:48:04,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:48:04,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:48:04,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:48:04,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:48:04,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:48:04,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:48:04,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:48:04,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:48:04,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:48:04,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:48:04,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:48:04,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:48:04,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:48:04,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:48:04,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:48:04,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:48:04,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:48:04,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:48:04,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:48:04,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:48:04,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:48:04,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:48:04,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:48:04,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:48:04,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:48:04,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:48:04,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:48:04,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:48:04,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:48:04,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:48:04,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:48:04,697 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:48:04,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:48:04,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:48:04,699 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:48:04,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:48:04,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:48:04,699 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:48:04,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:48:04,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:48:04,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:48:04,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:48:04,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:48:04,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:48:04,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:48:04,701 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:48:04,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:48:04,702 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_4e0a6131-a08c-4789-8883-6577f1460a76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1c49d4b020f9f5d6a4b38e5d9ce283ad63371da49a07c74ee4277370ba262dd [2022-12-14 14:48:04,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:48:04,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:48:04,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:48:04,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:48:04,885 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:48:04,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2022-12-14 14:48:07,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:48:07,830 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:48:07,831 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2022-12-14 14:48:07,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/data/aedd111d3/190e20c1ea9741a3a6df205c9f103717/FLAG715571242 [2022-12-14 14:48:07,867 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/data/aedd111d3/190e20c1ea9741a3a6df205c9f103717 [2022-12-14 14:48:07,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:48:07,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:48:07,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:48:07,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:48:07,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:48:07,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:48:07" (1/1) ... [2022-12-14 14:48:07,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77444c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:07, skipping insertion in model container [2022-12-14 14:48:07,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:48:07" (1/1) ... [2022-12-14 14:48:07,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:48:07,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:48:08,150 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_4e0a6131-a08c-4789-8883-6577f1460a76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4501,4514] [2022-12-14 14:48:08,158 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_4e0a6131-a08c-4789-8883-6577f1460a76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4561,4574] [2022-12-14 14:48:08,817 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:48:08,864 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:08,878 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:08,885 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,886 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,886 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,887 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,888 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,893 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:08,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,901 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,902 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:08,965 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:08,965 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:08,966 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:08,968 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:48:08,970 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:48:08,970 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:48:09,075 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,177 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:48:09,186 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:48:09,187 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:48:09,188 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:48:09,189 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:48:09,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:48:09,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:48:09,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:48:09,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:48:09,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:48:09,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:48:09,293 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,295 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,296 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,296 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,312 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,325 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:48:09,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:48:09,347 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:48:09,357 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_4e0a6131-a08c-4789-8883-6577f1460a76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4501,4514] [2022-12-14 14:48:09,357 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_4e0a6131-a08c-4789-8883-6577f1460a76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4561,4574] [2022-12-14 14:48:09,378 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:48:09,382 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,386 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,389 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,389 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,389 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,390 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,390 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,392 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,400 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:09,401 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:09,401 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:48:09,403 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:48:09,404 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:48:09,404 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:48:09,406 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,419 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:48:09,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:48:09,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:48:09,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:48:09,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:48:09,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:48:09,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:48:09,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:48:09,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:48:09,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:48:09,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:48:09,442 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,443 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,444 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,444 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:48:09,448 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 14:48:09,457 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:48:09,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:48:09,589 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:48:09,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09 WrapperNode [2022-12-14 14:48:09,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:48:09,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:48:09,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:48:09,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:48:09,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,676 INFO L138 Inliner]: procedures = 689, calls = 1535, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 691 [2022-12-14 14:48:09,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:48:09,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:48:09,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:48:09,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:48:09,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:48:09,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:48:09,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:48:09,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:48:09,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (1/1) ... [2022-12-14 14:48:09,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:48:09,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:09,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:48:09,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:48:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-14 14:48:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 14:48:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 14:48:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 14:48:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:48:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 14:48:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:48:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 14:48:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:48:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:48:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:48:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 14:48:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 14:48:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 14:48:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 14:48:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 14:48:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 14:48:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-14 14:48:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-14 14:48:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:48:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 14:48:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 14:48:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2022-12-14 14:48:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2022-12-14 14:48:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 14:48:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 14:48:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:48:10,026 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:48:10,028 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:48:10,709 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:48:10,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:48:10,848 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:48:10,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:48:10 BoogieIcfgContainer [2022-12-14 14:48:10,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:48:10,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:48:10,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:48:10,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:48:10,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:48:07" (1/3) ... [2022-12-14 14:48:10,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ee41c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:48:10, skipping insertion in model container [2022-12-14 14:48:10,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:09" (2/3) ... [2022-12-14 14:48:10,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ee41c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:48:10, skipping insertion in model container [2022-12-14 14:48:10,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:48:10" (3/3) ... [2022-12-14 14:48:10,859 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness_negated.i [2022-12-14 14:48:10,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:48:10,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:48:10,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:48:10,921 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;@5cd0111b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:48:10,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:48:10,924 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 14:48:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 14:48:10,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:10,933 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 14:48:10,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2028784662, now seen corresponding path program 1 times [2022-12-14 14:48:10,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:10,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911286368] [2022-12-14 14:48:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:10,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:11,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951969398] [2022-12-14 14:48:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:11,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:11,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:11,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:11,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:48:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:11,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 2266 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:48:11,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:11,715 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 14:48:11,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:11,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911286368] [2022-12-14 14:48:11,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951969398] [2022-12-14 14:48:11,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951969398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:11,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:11,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:48:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9485263] [2022-12-14 14:48:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:11,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:48:11,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:48:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:48:11,754 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 14:48:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:12,148 INFO L93 Difference]: Finished difference Result 234 states and 312 transitions. [2022-12-14 14:48:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:48:12,151 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 14:48:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:12,160 INFO L225 Difference]: With dead ends: 234 [2022-12-14 14:48:12,160 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 14:48:12,164 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 14:48:12,167 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 22 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 14:48:12,168 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 14:48:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 14:48:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-14 14:48:12,212 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 14:48:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-12-14 14:48:12,216 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 87 [2022-12-14 14:48:12,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:12,217 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-12-14 14:48:12,218 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 14:48:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-12-14 14:48:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 14:48:12,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:12,222 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 14:48:12,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:48:12,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:12,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:12,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1535738540, now seen corresponding path program 1 times [2022-12-14 14:48:12,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:12,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121996478] [2022-12-14 14:48:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:12,553 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:12,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758887613] [2022-12-14 14:48:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:12,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:12,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:12,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:12,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:48:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:12,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2316 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:48:12,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:12,975 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 14:48:12,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:12,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:12,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121996478] [2022-12-14 14:48:12,975 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:12,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758887613] [2022-12-14 14:48:12,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758887613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:12,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:12,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 14:48:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134928914] [2022-12-14 14:48:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:12,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:48:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:48:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:48:12,977 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 14:48:13,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:13,418 INFO L93 Difference]: Finished difference Result 241 states and 311 transitions. [2022-12-14 14:48:13,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:48:13,418 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 14:48:13,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:13,421 INFO L225 Difference]: With dead ends: 241 [2022-12-14 14:48:13,421 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 14:48:13,421 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 14:48:13,422 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 14:48:13,423 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 14:48:13,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 14:48:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 14:48:13,432 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 14:48:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2022-12-14 14:48:13,433 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 95 [2022-12-14 14:48:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:13,434 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2022-12-14 14:48:13,434 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 14:48:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2022-12-14 14:48:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 14:48:13,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:13,435 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 14:48:13,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:48:13,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:13,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1862882219, now seen corresponding path program 1 times [2022-12-14 14:48:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:13,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360313166] [2022-12-14 14:48:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:13,695 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:13,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691683088] [2022-12-14 14:48:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:13,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:13,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:13,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:48:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:14,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 2448 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 14:48:14,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:14,118 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 14:48:14,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:14,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:14,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360313166] [2022-12-14 14:48:14,118 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:14,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691683088] [2022-12-14 14:48:14,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691683088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:14,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:14,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:48:14,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457737620] [2022-12-14 14:48:14,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:14,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:48:14,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:14,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:48:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:14,120 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 14:48:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:14,409 INFO L93 Difference]: Finished difference Result 235 states and 301 transitions. [2022-12-14 14:48:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:48:14,409 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 14:48:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:14,412 INFO L225 Difference]: With dead ends: 235 [2022-12-14 14:48:14,412 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 14:48:14,413 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 14:48:14,414 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, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:14,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 612 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:48:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 14:48:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 14:48:14,424 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 14:48:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-12-14 14:48:14,425 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 104 [2022-12-14 14:48:14,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:14,425 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-12-14 14:48:14,425 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 14:48:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-12-14 14:48:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 14:48:14,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:14,427 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 14:48:14,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:48:14,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 14:48:14,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash -277411090, now seen corresponding path program 1 times [2022-12-14 14:48:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:14,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795205397] [2022-12-14 14:48:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:14,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:14,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145547256] [2022-12-14 14:48:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:14,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:14,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:14,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:48:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:15,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 14:48:15,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:15,218 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 14:48:15,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:15,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:15,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795205397] [2022-12-14 14:48:15,219 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:15,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145547256] [2022-12-14 14:48:15,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145547256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:15,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:15,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:48:15,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035820005] [2022-12-14 14:48:15,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:15,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:48:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:48:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:48:15,221 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 14:48:15,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:15,640 INFO L93 Difference]: Finished difference Result 240 states and 306 transitions. [2022-12-14 14:48:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:48:15,641 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 14:48:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:15,642 INFO L225 Difference]: With dead ends: 240 [2022-12-14 14:48:15,642 INFO L226 Difference]: Without dead ends: 134 [2022-12-14 14:48:15,642 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 14:48:15,643 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, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:15,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 833 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:48:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-14 14:48:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-14 14:48:15,650 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 14:48:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2022-12-14 14:48:15,650 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 112 [2022-12-14 14:48:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:15,651 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2022-12-14 14:48:15,651 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 14:48:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2022-12-14 14:48:15,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 14:48:15,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:15,652 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 14:48:15,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 14:48:15,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:15,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:15,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1315925753, now seen corresponding path program 2 times [2022-12-14 14:48:15,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:15,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320256804] [2022-12-14 14:48:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:15,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:15,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969199278] [2022-12-14 14:48:15,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:48:15,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:15,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:15,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:15,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:48:16,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 14:48:16,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:48:16,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:48:16,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-14 14:48:16,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:16,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:16,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320256804] [2022-12-14 14:48:16,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:16,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969199278] [2022-12-14 14:48:16,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969199278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:16,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:16,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:48:16,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723037229] [2022-12-14 14:48:16,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:16,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:48:16,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:48:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:16,297 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 14:48:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:16,590 INFO L93 Difference]: Finished difference Result 142 states and 177 transitions. [2022-12-14 14:48:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:48:16,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 121 [2022-12-14 14:48:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:16,592 INFO L225 Difference]: With dead ends: 142 [2022-12-14 14:48:16,592 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 14:48:16,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:48:16,593 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 5 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:16,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 714 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:48:16,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 14:48:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-12-14 14:48:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 81 states have internal predecessors, (91), 41 states have call successors, (41), 17 states have call predecessors, (41), 18 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2022-12-14 14:48:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 174 transitions. [2022-12-14 14:48:16,602 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 174 transitions. Word has length 121 [2022-12-14 14:48:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:16,602 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 174 transitions. [2022-12-14 14:48:16,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 14:48:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 174 transitions. [2022-12-14 14:48:16,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 14:48:16,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:16,604 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 14:48:16,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 14:48:16,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:16,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:16,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash 578156816, now seen corresponding path program 3 times [2022-12-14 14:48:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:16,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783298289] [2022-12-14 14:48:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:16,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:16,911 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:16,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724350444] [2022-12-14 14:48:16,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:48:16,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:16,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:16,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:16,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:48:17,266 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:48:17,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:48:17,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 14:48:17,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-12-14 14:48:17,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:48:17,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:17,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783298289] [2022-12-14 14:48:17,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:17,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724350444] [2022-12-14 14:48:17,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724350444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:17,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:17,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:48:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599744787] [2022-12-14 14:48:17,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:17,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:48:17,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:48:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:17,333 INFO L87 Difference]: Start difference. First operand 139 states and 174 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 14:48:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:17,601 INFO L93 Difference]: Finished difference Result 220 states and 273 transitions. [2022-12-14 14:48:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:48:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 130 [2022-12-14 14:48:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:17,603 INFO L225 Difference]: With dead ends: 220 [2022-12-14 14:48:17,603 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 14:48:17,603 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 14:48:17,604 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 15 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:17,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 613 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:48:17,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 14:48:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-14 14:48:17,619 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 14:48:17,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2022-12-14 14:48:17,621 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 130 [2022-12-14 14:48:17,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:17,621 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2022-12-14 14:48:17,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 14:48:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2022-12-14 14:48:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 14:48:17,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:17,624 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 14:48:17,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:48:17,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:17,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:48:17,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1420290105, now seen corresponding path program 1 times [2022-12-14 14:48:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:17,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948809054] [2022-12-14 14:48:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:17,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:48:17,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428871158] [2022-12-14 14:48:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:17,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:48:17,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:17,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:48:17,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e0a6131-a08c-4789-8883-6577f1460a76/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:48:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:18,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 223 conjunts are in the unsatisfiable core [2022-12-14 14:48:18,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:48:18,590 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 14:48:19,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 14:48:19,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 14:48:19,204 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 21 treesize of output 20 [2022-12-14 14:48:23,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:23,320 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 21 treesize of output 20 [2022-12-14 14:48:23,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:23,326 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 21 treesize of output 20 [2022-12-14 14:48:23,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:23,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 14:48:27,568 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_805 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_805))) (exists ((v_ArrVal_804 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_804) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_806 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_806)))) is different from true [2022-12-14 14:48:27,915 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_810 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_807 Int) (v_ArrVal_808 (Array Int Int))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_807))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_810)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_808) |c_#memory_$Pointer$.offset|)))) is different from true [2022-12-14 14:48:27,936 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_810 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_807 Int) (v_ArrVal_808 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_810)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_808) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_807)) |c_#memory_int|)))) is different from true [2022-12-14 14:48:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:29,162 INFO L321 Elim1Store]: treesize reduction 30, result has 23.1 percent of original size [2022-12-14 14:48:29,162 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 2 case distinctions, treesize of input 19 treesize of output 21 [2022-12-14 14:48:29,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 14:48:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:29,185 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 19 treesize of output 18 [2022-12-14 14:48:29,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:29,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:29,195 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 26 treesize of output 23 [2022-12-14 14:48:29,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:29,200 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 18 treesize of output 22 [2022-12-14 14:48:29,213 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 14:48:29,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 14:48:29,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 14:48:38,794 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 14:48:38,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 52 [2022-12-14 14:48:38,803 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 14:48:38,803 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 54 treesize of output 34 [2022-12-14 14:48:38,809 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 14:48:38,810 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 50 treesize of output 30 [2022-12-14 14:48:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 87 proven. 19 refuted. 2 times theorem prover too weak. 23 trivial. 5 not checked. [2022-12-14 14:48:38,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:48:41,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948809054] [2022-12-14 14:48:41,751 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:48:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428871158] [2022-12-14 14:48:41,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428871158] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:48:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693905612] [2022-12-14 14:48:41,771 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 14:48:41,771 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:48:41,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:48:41,779 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:48:41,779 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:48:44,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:48:44,628 INFO L217 Elim1Store]: Index analysis took 220 ms [2022-12-14 14:49:02,018 WARN L233 SmtUtils]: Spent 17.35s 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 14:49:02,022 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-12-14 14:49:02,025 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 14:49:05,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:49:05,212 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 14:50:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:29,184 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 14:50:29,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:29,188 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 14:50:29,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:29,195 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 14:50:29,201 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 14:50:32,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,399 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 14:50:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:32,921 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 14:50:33,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,347 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 14:50:33,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,686 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 14:50:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:34,082 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 14:50:41,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:41,888 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 14:50:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,378 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 14:50:42,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:42,797 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 14:50:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,213 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 14:50:43,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:50:43,533 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 14:50:59,571 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 14:50:59,669 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 14:50:59,707 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 14:50:59,915 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 14:51:00,025 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 14:51:00,069 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 14:51:14,830 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 14:51:14,876 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 14:51:14,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 14:51:15,189 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 14:51:15,225 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 14:51:15,300 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 14:51:17,719 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 14:51:17,822 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 14:51:18,184 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 14:51:18,534 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 14:51:32,261 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 14:51:32,266 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 14:51:32,287 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 14:51:32,291 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 14:51:32,315 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 14:51:32,323 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 14:51:32,329 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 14:51:32,333 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 14:51:32,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:32,377 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 14:51:32,385 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 14:51:32,393 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 14:51:32,422 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 14:51:32,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:32,444 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 14:51:32,451 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 14:51:32,541 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 14:51:32,562 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 14:51:32,564 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 14:51:32,623 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 14:51:32,625 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 14:51:34,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2167 treesize of output 2139 [2022-12-14 14:51:34,498 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 14:51:34,620 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 14:51:50,082 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 14:51:50,354 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 14:51:50,536 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 14:51:53,146 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 14:51:53,147 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 14:51:53,165 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 14:51:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,243 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,243 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 14:51:53,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:51:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:51:53,276 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,277 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 14:51:53,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,309 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,309 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 14:51:53,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,393 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,393 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 14:51:53,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:51:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:51:53,430 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,430 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 14:51:53,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,458 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,458 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 14:51:53,530 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 14:51:53,530 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 14:51:53,568 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 14:51:53,568 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 14:51:53,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,652 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 14:51:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,674 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,674 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 14:51:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,697 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,697 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 14:51:53,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,784 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,785 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 14:51:53,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,805 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,805 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 14:51:53,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:51:53,829 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:51:53,829 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 14:51:54,164 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 14:51:54,177 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 14:51:54,186 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 14:51:54,349 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 14:51:54,438 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 14:51:54,448 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 14:51:54,734 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 14:51:54,941 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 14:52:46,918 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2022-12-14 14:52:46,940 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2895 for LOIs [2022-12-14 14:53:00,342 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_array with input of size 208 for LOIs [2022-12-14 14:53:00,561 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-12-14 14:53:04,580 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 725 for LOIs [2022-12-14 14:53:05,582 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 14:53:05,909 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 14:53:06,943 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 14:53:07,006 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 14:53:07,488 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 14:53:08,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 14:53:09,792 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 14:53:09,815 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 14:53:09,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:53:09,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:53:09,965 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:53:09,965 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 14:53:11,315 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 14:53:11,376 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 14:53:12,047 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 14:53:12,408 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 14:53:14,227 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 14:53:14,256 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 14:53:14,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:53:14,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:53:14,405 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:53:14,405 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 14:53:15,166 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 14:53:15,973 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 14:53:16,034 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 14:53:16,703 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 14:53:16,854 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 14:53:17,969 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 723 for LOIs [2022-12-14 14:53:26,906 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 712 for LOIs [2022-12-14 14:53:27,686 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2963 for LOIs [2022-12-14 14:54:46,428 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 14:54:46,432 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 14:54:46,438 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 14:54:46,447 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 14:55:08,419 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-12-14 14:55:08,422 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2022-12-14 14:55:08,424 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:56:37,038 WARN L233 SmtUtils]: Spent 1.43m 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 14:59:45,656 WARN L233 SmtUtils]: Spent 3.09m 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)