./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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 9cc96be1457921f7bad5c5f5327d6f8e8a100f70ac7b188925bd7cb614e876f4 --- 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 04:59:09,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:59:09,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:59:09,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:59:09,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:59:09,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:59:09,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:59:09,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:59:09,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:59:09,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:59:09,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:59:09,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:59:09,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:59:09,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:59:09,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:59:09,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:59:09,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:59:09,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:59:09,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:59:09,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:59:09,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:59:09,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:59:09,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:59:09,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:59:09,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:59:09,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:59:09,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:59:09,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:59:09,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:59:09,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:59:09,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:59:09,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:59:09,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:59:09,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:59:09,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:59:09,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:59:09,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:59:09,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:59:09,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:59:09,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:59:09,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:59:09,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 04:59:09,140 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:59:09,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:59:09,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:59:09,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:59:09,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:59:09,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:59:09,141 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:59:09,141 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:59:09,142 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:59:09,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:59:09,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:59:09,143 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:59:09,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:59:09,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:59:09,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:59:09,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:59:09,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:59:09,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:59:09,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:59:09,146 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:59:09,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:59:09,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:59:09,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:59:09,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:59:09,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:59:09,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:59:09,147 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cc96be1457921f7bad5c5f5327d6f8e8a100f70ac7b188925bd7cb614e876f4 [2022-12-14 04:59:09,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:59:09,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:59:09,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:59:09,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:59:09,357 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:59:09,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2022-12-14 04:59:12,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:59:12,420 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:59:12,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2022-12-14 04:59:12,447 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/e48dd052f/e8298b934d1b415a90e2367576a226fd/FLAGe9d4b41a5 [2022-12-14 04:59:12,459 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/e48dd052f/e8298b934d1b415a90e2367576a226fd [2022-12-14 04:59:12,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:59:12,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:59:12,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:59:12,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:59:12,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:59:12,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:59:12" (1/1) ... [2022-12-14 04:59:12,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ace9fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:12, skipping insertion in model container [2022-12-14 04:59:12,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:59:12" (1/1) ... [2022-12-14 04:59:12,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:59:12,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:59:12,739 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2022-12-14 04:59:12,746 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2022-12-14 04:59:13,430 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,437 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,438 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,438 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,439 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,441 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,444 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,458 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,458 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,464 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,464 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,465 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,465 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,543 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:13,544 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:13,545 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:13,550 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 04:59:13,552 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 04:59:13,552 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 04:59:13,817 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 04:59:13,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 04:59:13,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 04:59:13,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 04:59:13,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 04:59:13,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 04:59:13,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 04:59:13,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 04:59:13,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 04:59:13,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 04:59:13,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 04:59:13,951 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 04:59:13,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,977 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,980 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,981 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,983 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:13,985 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,988 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,989 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,989 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,990 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,990 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:13,991 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,030 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 04:59:14,044 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,047 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 04:59:14,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,051 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,051 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,051 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,052 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,055 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,056 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,063 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,075 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,075 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,076 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:59:14,105 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:59:14,115 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2022-12-14 04:59:14,116 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2022-12-14 04:59:14,148 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,150 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,150 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,151 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,151 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,152 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,153 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,158 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,158 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,159 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,160 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,160 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,161 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,162 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,168 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:14,168 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:14,169 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 04:59:14,171 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 04:59:14,172 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 04:59:14,172 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 04:59:14,191 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 04:59:14,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 04:59:14,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 04:59:14,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 04:59:14,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 04:59:14,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 04:59:14,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 04:59:14,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 04:59:14,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 04:59:14,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 04:59:14,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 04:59:14,216 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 04:59:14,229 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,231 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,233 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,234 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,235 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,237 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,238 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,238 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,239 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,239 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,239 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,240 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 04:59:14,255 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 04:59:14,260 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,262 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,262 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,262 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,262 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 04:59:14,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,267 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,287 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,287 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,288 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,293 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 04:59:14,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:59:14,439 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:59:14,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14 WrapperNode [2022-12-14 04:59:14,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:59:14,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:59:14,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:59:14,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:59:14,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,562 INFO L138 Inliner]: procedures = 697, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1059 [2022-12-14 04:59:14,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:59:14,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:59:14,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:59:14,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:59:14,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:59:14,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:59:14,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:59:14,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:59:14,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (1/1) ... [2022-12-14 04:59:14,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:59:14,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:14,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:59:14,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:59:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-14 04:59:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-14 04:59:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-14 04:59:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 04:59:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 04:59:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 04:59:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-14 04:59:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-14 04:59:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 04:59:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 04:59:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-12-14 04:59:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:59:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-14 04:59:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 04:59:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:59:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 04:59:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 04:59:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 04:59:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-14 04:59:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-14 04:59:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-14 04:59:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 04:59:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 04:59:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 04:59:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-14 04:59:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-14 04:59:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 04:59:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 04:59:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 04:59:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:59:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 04:59:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 04:59:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-14 04:59:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-14 04:59:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 04:59:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 04:59:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:59:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-12-14 04:59:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-12-14 04:59:15,003 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:59:15,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:59:16,469 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:59:16,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:59:16,639 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 04:59:16,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:59:16 BoogieIcfgContainer [2022-12-14 04:59:16,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:59:16,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:59:16,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:59:16,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:59:16,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:59:12" (1/3) ... [2022-12-14 04:59:16,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fdae65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:59:16, skipping insertion in model container [2022-12-14 04:59:16,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:59:14" (2/3) ... [2022-12-14 04:59:16,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fdae65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:59:16, skipping insertion in model container [2022-12-14 04:59:16,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:59:16" (3/3) ... [2022-12-14 04:59:16,647 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness_negated.i [2022-12-14 04:59:16,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:59:16,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:59:16,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:59:16,706 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;@71ac4b80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:59:16,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:59:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-12-14 04:59:16,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 04:59:16,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:16,720 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:16,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:16,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -512711528, now seen corresponding path program 1 times [2022-12-14 04:59:16,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:16,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452402691] [2022-12-14 04:59:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:16,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-14 04:59:17,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:17,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452402691] [2022-12-14 04:59:17,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452402691] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 04:59:17,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910881988] [2022-12-14 04:59:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:17,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:17,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:17,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:17,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 04:59:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:17,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2394 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 04:59:17,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-12-14 04:59:17,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:17,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910881988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:17,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 04:59:17,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-12-14 04:59:17,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454199446] [2022-12-14 04:59:17,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:17,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:59:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:59:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:17,873 INFO L87 Difference]: Start difference. First operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 04:59:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:18,744 INFO L93 Difference]: Finished difference Result 710 states and 1085 transitions. [2022-12-14 04:59:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:59:18,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-12-14 04:59:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:18,754 INFO L225 Difference]: With dead ends: 710 [2022-12-14 04:59:18,754 INFO L226 Difference]: Without dead ends: 386 [2022-12-14 04:59:18,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:18,762 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:18,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:59:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-12-14 04:59:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-12-14 04:59:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 198 states have (on average 1.1919191919191918) internal successors, (236), 201 states have internal predecessors, (236), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-12-14 04:59:18,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 554 transitions. [2022-12-14 04:59:18,814 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 554 transitions. Word has length 106 [2022-12-14 04:59:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:18,815 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 554 transitions. [2022-12-14 04:59:18,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 04:59:18,816 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 554 transitions. [2022-12-14 04:59:18,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 04:59:18,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:18,818 INFO L195 NwaCegarLoop]: trace histogram [11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:18,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 04:59:19,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:19,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1067040696, now seen corresponding path program 1 times [2022-12-14 04:59:19,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:19,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581703095] [2022-12-14 04:59:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:19,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-12-14 04:59:19,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:19,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581703095] [2022-12-14 04:59:19,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581703095] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 04:59:19,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903241057] [2022-12-14 04:59:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:19,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:19,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:19,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 04:59:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:19,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 04:59:19,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-14 04:59:19,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903241057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:19,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 04:59:19,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 04:59:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526395459] [2022-12-14 04:59:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:19,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:19,899 INFO L87 Difference]: Start difference. First operand 386 states and 554 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 04:59:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:21,601 INFO L93 Difference]: Finished difference Result 744 states and 1084 transitions. [2022-12-14 04:59:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:59:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 118 [2022-12-14 04:59:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:21,605 INFO L225 Difference]: With dead ends: 744 [2022-12-14 04:59:21,606 INFO L226 Difference]: Without dead ends: 388 [2022-12-14 04:59:21,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 04:59:21,608 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 49 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:21,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1837 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 04:59:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-12-14 04:59:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2022-12-14 04:59:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 199 states have (on average 1.1909547738693467) internal successors, (237), 203 states have internal predecessors, (237), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2022-12-14 04:59:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 568 transitions. [2022-12-14 04:59:21,632 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 568 transitions. Word has length 118 [2022-12-14 04:59:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:21,633 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 568 transitions. [2022-12-14 04:59:21,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 04:59:21,633 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 568 transitions. [2022-12-14 04:59:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-14 04:59:21,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:21,635 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:21,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 04:59:21,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:21,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:21,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:21,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2052546200, now seen corresponding path program 1 times [2022-12-14 04:59:21,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:21,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556173609] [2022-12-14 04:59:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-14 04:59:22,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:22,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556173609] [2022-12-14 04:59:22,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556173609] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 04:59:22,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963705074] [2022-12-14 04:59:22,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:22,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:22,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:22,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 04:59:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:22,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 04:59:22,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-14 04:59:22,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:22,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963705074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:22,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 04:59:22,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-12-14 04:59:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618810151] [2022-12-14 04:59:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 04:59:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 04:59:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 04:59:22,740 INFO L87 Difference]: Start difference. First operand 388 states and 568 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-14 04:59:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:25,678 INFO L93 Difference]: Finished difference Result 759 states and 1143 transitions. [2022-12-14 04:59:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 04:59:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 126 [2022-12-14 04:59:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:25,681 INFO L225 Difference]: With dead ends: 759 [2022-12-14 04:59:25,682 INFO L226 Difference]: Without dead ends: 401 [2022-12-14 04:59:25,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-14 04:59:25,684 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 64 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:25,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2682 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 04:59:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-12-14 04:59:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2022-12-14 04:59:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-12-14 04:59:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-12-14 04:59:25,705 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 126 [2022-12-14 04:59:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:25,705 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-12-14 04:59:25,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-14 04:59:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-12-14 04:59:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 04:59:25,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:25,707 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:25,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 04:59:25,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:25,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash -228357947, now seen corresponding path program 1 times [2022-12-14 04:59:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:25,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950135717] [2022-12-14 04:59:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:25,975 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 04:59:25,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13069619] [2022-12-14 04:59:25,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:25,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:25,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:25,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:25,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 04:59:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:26,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 04:59:26,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-14 04:59:26,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:26,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:26,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950135717] [2022-12-14 04:59:26,457 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 04:59:26,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13069619] [2022-12-14 04:59:26,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13069619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:26,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:26,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:59:26,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861906300] [2022-12-14 04:59:26,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:26,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:59:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:26,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:59:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:59:26,459 INFO L87 Difference]: Start difference. First operand 399 states and 599 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-14 04:59:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:29,062 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2022-12-14 04:59:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 04:59:29,063 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 135 [2022-12-14 04:59:29,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:29,066 INFO L225 Difference]: With dead ends: 776 [2022-12-14 04:59:29,066 INFO L226 Difference]: Without dead ends: 407 [2022-12-14 04:59:29,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 04:59:29,069 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 60 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:29,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2282 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 04:59:29,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-12-14 04:59:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2022-12-14 04:59:29,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-12-14 04:59:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-12-14 04:59:29,099 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 135 [2022-12-14 04:59:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:29,099 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-12-14 04:59:29,100 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-14 04:59:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-12-14 04:59:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 04:59:29,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:29,102 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:29,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 04:59:29,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:29,304 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:29,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:29,305 INFO L85 PathProgramCache]: Analyzing trace with hash 596548951, now seen corresponding path program 1 times [2022-12-14 04:59:29,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:29,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353365292] [2022-12-14 04:59:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:29,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:29,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 04:59:29,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569483738] [2022-12-14 04:59:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:29,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:29,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:29,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:29,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 04:59:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:29,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 04:59:29,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-12-14 04:59:30,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:30,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:30,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353365292] [2022-12-14 04:59:30,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 04:59:30,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569483738] [2022-12-14 04:59:30,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569483738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:30,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:30,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 04:59:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556871179] [2022-12-14 04:59:30,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:30,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 04:59:30,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:30,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 04:59:30,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:30,014 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-14 04:59:31,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 04:59:33,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:33,376 INFO L93 Difference]: Finished difference Result 778 states and 1196 transitions. [2022-12-14 04:59:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 04:59:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 143 [2022-12-14 04:59:33,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:33,380 INFO L225 Difference]: With dead ends: 778 [2022-12-14 04:59:33,380 INFO L226 Difference]: Without dead ends: 409 [2022-12-14 04:59:33,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 04:59:33,383 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 83 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:33,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3089 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 04:59:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-12-14 04:59:33,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2022-12-14 04:59:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-12-14 04:59:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-12-14 04:59:33,408 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 143 [2022-12-14 04:59:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:33,409 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-12-14 04:59:33,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-14 04:59:33,409 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-12-14 04:59:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 04:59:33,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:33,411 INFO L195 NwaCegarLoop]: trace histogram [11, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:33,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 04:59:33,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:33,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 18860654, now seen corresponding path program 2 times [2022-12-14 04:59:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406404272] [2022-12-14 04:59:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:33,703 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 04:59:33,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115787187] [2022-12-14 04:59:33,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 04:59:33,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:33,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:33,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:33,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 04:59:34,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 04:59:34,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 04:59:34,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 04:59:34,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-14 04:59:34,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:59:34,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:34,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406404272] [2022-12-14 04:59:34,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 04:59:34,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115787187] [2022-12-14 04:59:34,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115787187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:34,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:34,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:59:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370509951] [2022-12-14 04:59:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:34,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:59:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:34,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:59:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:59:34,099 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 04:59:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:36,281 INFO L93 Difference]: Finished difference Result 407 states and 607 transitions. [2022-12-14 04:59:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 152 [2022-12-14 04:59:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:36,284 INFO L225 Difference]: With dead ends: 407 [2022-12-14 04:59:36,284 INFO L226 Difference]: Without dead ends: 405 [2022-12-14 04:59:36,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 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 04:59:36,285 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 5 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:36,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2505 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 04:59:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-12-14 04:59:36,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2022-12-14 04:59:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 210 states have (on average 1.1904761904761905) internal successors, (250), 214 states have internal predecessors, (250), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (191), 162 states have call predecessors, (191), 161 states have call successors, (191) [2022-12-14 04:59:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 604 transitions. [2022-12-14 04:59:36,299 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 604 transitions. Word has length 152 [2022-12-14 04:59:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:36,299 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 604 transitions. [2022-12-14 04:59:36,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 04:59:36,300 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 604 transitions. [2022-12-14 04:59:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 04:59:36,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:36,301 INFO L195 NwaCegarLoop]: trace histogram [11, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:36,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 04:59:36,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:36,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:59:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1894252097, now seen corresponding path program 3 times [2022-12-14 04:59:36,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:36,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970028472] [2022-12-14 04:59:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:36,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:36,609 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 04:59:36,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36789811] [2022-12-14 04:59:36,610 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 04:59:36,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:59:36,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:59:36,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:59:36,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 04:59:36,925 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 04:59:36,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 04:59:36,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 04:59:36,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:59:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-12-14 04:59:37,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 04:59:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-12-14 04:59:37,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:37,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970028472] [2022-12-14 04:59:37,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 04:59:37,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36789811] [2022-12-14 04:59:37,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36789811] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 04:59:37,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [860679938] [2022-12-14 04:59:37,377 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-12-14 04:59:37,377 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 04:59:37,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 04:59:37,386 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 04:59:37,386 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 04:59:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 04:59:40,623 INFO L217 Elim1Store]: Index analysis took 356 ms [2022-12-14 04:59:52,725 WARN L233 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 1758 DAG size of output: 1169 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 04:59:52,730 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-12-14 04:59:52,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19112 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 195 case distinctions, treesize of input 987 treesize of output 2346 [2022-12-14 04:59:55,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 04:59:56,057 INFO L217 Elim1Store]: Index analysis took 593 ms [2022-12-14 05:00:13,620 WARN L233 SmtUtils]: Spent 17.53s 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 05:00:13,622 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-12-14 05:00:13,625 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 05:01:42,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:42,511 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 05:01:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:42,517 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 05:01:42,524 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 05:01:42,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:42,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:42,532 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 05:01:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,606 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 05:01:45,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:45,982 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 05:01:46,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,384 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 05:01:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:46,794 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 05:01:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:47,299 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 05:01:54,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:54,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,012 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 05:01:55,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,351 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 05:01:55,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:55,861 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 05:01:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,274 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 05:01:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:01:56,765 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-12-14 05:01:56,784 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 05:02:13,104 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 05:02:13,171 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 05:02:13,211 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 05:02:13,457 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 05:02:13,526 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 05:02:13,566 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 05:02:28,576 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 05:02:28,650 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 05:02:28,691 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 05:02:28,927 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 05:02:29,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 05:02:29,043 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 05:02:31,610 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 05:02:31,723 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 05:02:32,102 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 05:02:32,300 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 05:02:46,257 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 05:02:46,262 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 05:02:46,283 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 05:02:46,286 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 05:02:46,312 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 05:02:46,316 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 05:02:46,320 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 05:02:46,327 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 05:02:46,352 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 05:02:46,356 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 05:02:46,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:02:46,375 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 05:02:46,413 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:02:46,413 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 05:02:46,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:02:46,425 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 05:02:46,510 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 05:02:46,522 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 05:02:46,525 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 05:02:46,536 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 05:02:46,539 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 05:02:48,027 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 05:02:48,310 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 05:02:48,500 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 05:03:04,539 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 05:03:04,848 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 05:03:04,955 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 05:04:47,344 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 05:04:47,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 197 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 233 [2022-12-14 05:04:47,661 INFO L321 Elim1Store]: treesize reduction 118, result has 13.2 percent of original size [2022-12-14 05:04:47,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 157 [2022-12-14 05:04:47,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 322 treesize of output 314 [2022-12-14 05:04:48,158 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 100 treesize of output 89 [2022-12-14 05:04:48,297 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 106 treesize of output 99 [2022-12-14 05:04:48,448 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 106 treesize of output 99 [2022-12-14 05:04:48,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 05:04:48,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 05:04:48,794 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 05:04:48,797 INFO L158 Benchmark]: Toolchain (without parser) took 336333.89ms. Allocated memory was 138.4MB in the beginning and 360.7MB in the end (delta: 222.3MB). Free memory was 101.4MB in the beginning and 120.9MB in the end (delta: -19.6MB). Peak memory consumption was 281.5MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,797 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:04:48,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1975.10ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 101.4MB in the beginning and 109.2MB in the end (delta: -7.9MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.09ms. Allocated memory is still 172.0MB. Free memory was 109.2MB in the beginning and 97.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,797 INFO L158 Benchmark]: Boogie Preprocessor took 94.11ms. Allocated memory is still 172.0MB. Free memory was 97.6MB in the beginning and 88.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,798 INFO L158 Benchmark]: RCFGBuilder took 1983.15ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 88.2MB in the beginning and 115.7MB in the end (delta: -27.4MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,798 INFO L158 Benchmark]: TraceAbstraction took 332153.55ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 115.7MB in the beginning and 120.9MB in the end (delta: -5.3MB). Peak memory consumption was 225.0MB. Max. memory is 16.1GB. [2022-12-14 05:04:48,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1975.10ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 101.4MB in the beginning and 109.2MB in the end (delta: -7.9MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.09ms. Allocated memory is still 172.0MB. Free memory was 109.2MB in the beginning and 97.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.11ms. Allocated memory is still 172.0MB. Free memory was 97.6MB in the beginning and 88.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1983.15ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 88.2MB in the beginning and 115.7MB in the end (delta: -27.4MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * TraceAbstraction took 332153.55ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 115.7MB in the beginning and 120.9MB in the end (delta: -5.3MB). Peak memory consumption was 225.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 05:04:48,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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 9cc96be1457921f7bad5c5f5327d6f8e8a100f70ac7b188925bd7cb614e876f4 --- 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 05:04:50,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:04:50,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:04:50,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:04:50,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:04:50,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:04:50,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:04:50,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:04:50,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:04:50,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:04:50,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:04:50,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:04:50,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:04:50,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:04:50,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:04:50,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:04:50,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:04:50,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:04:50,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:04:50,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:04:50,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:04:50,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:04:50,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:04:50,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:04:50,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:04:50,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:04:50,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:04:50,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:04:50,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:04:50,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:04:50,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:04:50,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:04:50,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:04:50,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:04:50,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:04:50,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:04:50,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:04:50,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:04:50,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:04:50,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:04:50,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:04:50,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 05:04:50,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:04:50,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:04:50,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:04:50,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:04:50,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:04:50,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:04:50,426 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:04:50,426 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:04:50,427 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:04:50,427 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:04:50,427 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:04:50,427 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:04:50,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:04:50,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:04:50,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:04:50,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:04:50,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:04:50,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:04:50,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:04:50,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:04:50,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:04:50,430 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cc96be1457921f7bad5c5f5327d6f8e8a100f70ac7b188925bd7cb614e876f4 [2022-12-14 05:04:50,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:04:50,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:04:50,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:04:50,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:04:50,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:04:50,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2022-12-14 05:04:53,156 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:04:53,454 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:04:53,455 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2022-12-14 05:04:53,476 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/51dc8f043/6cf5ddfaf9684b6882fac1c13b82ad60/FLAGf295fc889 [2022-12-14 05:04:53,723 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/data/51dc8f043/6cf5ddfaf9684b6882fac1c13b82ad60 [2022-12-14 05:04:53,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:04:53,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:04:53,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:04:53,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:04:53,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:04:53,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:04:53" (1/1) ... [2022-12-14 05:04:53,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63569557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:53, skipping insertion in model container [2022-12-14 05:04:53,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:04:53" (1/1) ... [2022-12-14 05:04:53,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:04:53,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:04:53,988 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2022-12-14 05:04:53,994 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2022-12-14 05:04:54,619 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:54,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,627 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,628 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,630 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:54,641 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,641 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:54,642 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,644 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,644 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,646 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,647 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:54,647 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,648 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,648 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:54,700 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:54,700 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:54,701 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:54,705 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 05:04:54,707 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 05:04:54,707 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 05:04:54,947 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:54,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 05:04:54,949 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 05:04:54,949 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 05:04:54,950 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 05:04:54,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 05:04:54,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 05:04:54,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 05:04:54,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 05:04:54,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 05:04:54,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 05:04:55,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 05:04:55,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,089 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,090 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,091 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,092 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,094 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,097 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,097 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,097 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,098 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,098 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,098 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,132 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 05:04:55,144 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,145 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,145 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,145 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,145 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,146 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,146 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,146 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:55,146 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,149 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,150 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,150 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,150 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,152 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,153 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,157 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,158 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,158 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,166 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,166 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,167 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:04:55,193 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 05:04:55,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:04:55,216 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2022-12-14 05:04:55,216 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2022-12-14 05:04:55,241 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,243 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,243 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,244 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,244 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,244 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,245 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,248 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,249 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,249 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,250 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,250 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,251 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,251 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,251 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,251 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,251 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,256 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,256 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,256 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,258 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 05:04:55,259 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 05:04:55,259 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 05:04:55,273 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:55,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 05:04:55,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 05:04:55,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 05:04:55,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 05:04:55,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 05:04:55,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 05:04:55,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 05:04:55,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 05:04:55,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 05:04:55,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 05:04:55,290 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 05:04:55,298 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,299 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,300 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,301 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,302 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,303 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,304 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,304 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,304 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,304 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,305 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,305 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,322 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 05:04:55,327 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,327 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,327 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,328 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,328 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,328 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,328 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,329 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:55,329 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,329 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,329 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,334 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,334 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,339 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,340 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,340 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,345 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,345 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,345 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:04:55,360 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:04:55,372 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2022-12-14 05:04:55,373 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_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2022-12-14 05:04:55,398 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,401 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,401 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,402 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,406 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,406 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,406 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,407 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,407 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,408 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,408 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,409 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,409 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,409 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,415 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,415 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,415 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:04:55,418 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 05:04:55,419 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 05:04:55,419 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 05:04:55,441 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:55,441 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 05:04:55,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 05:04:55,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 05:04:55,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 05:04:55,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 05:04:55,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 05:04:55,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 05:04:55,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 05:04:55,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 05:04:55,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 05:04:55,454 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 05:04:55,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,462 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,463 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,464 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,465 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,465 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,466 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,466 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,467 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,467 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,467 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,467 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:04:55,474 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 05:04:55,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,478 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,503 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,507 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,508 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,508 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:04:55,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:04:55,728 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:04:55,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55 WrapperNode [2022-12-14 05:04:55,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:04:55,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:04:55,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:04:55,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:04:55,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,837 INFO L138 Inliner]: procedures = 717, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1040 [2022-12-14 05:04:55,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:04:55,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:04:55,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:04:55,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:04:55,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,909 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:04:55,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:04:55,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:04:55,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:04:55,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (1/1) ... [2022-12-14 05:04:55,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:04:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:04:55,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:04:55,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-14 05:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-14 05:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 05:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 05:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 05:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-12-14 05:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 05:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-14 05:04:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-14 05:04:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-14 05:04:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-12-14 05:04:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-12-14 05:04:56,268 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:04:56,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:05:00,669 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:05:00,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:05:00,678 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 05:05:00,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:05:00 BoogieIcfgContainer [2022-12-14 05:05:00,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:05:00,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:05:00,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:05:00,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:05:00,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:04:53" (1/3) ... [2022-12-14 05:05:00,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0db379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:05:00, skipping insertion in model container [2022-12-14 05:05:00,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:55" (2/3) ... [2022-12-14 05:05:00,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0db379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:05:00, skipping insertion in model container [2022-12-14 05:05:00,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:05:00" (3/3) ... [2022-12-14 05:05:00,686 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness_negated.i [2022-12-14 05:05:00,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:05:00,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:05:00,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:05:00,752 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;@73ffcea2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:05:00,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:05:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-12-14 05:05:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 05:05:00,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:00,774 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:00,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:00,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 236384645, now seen corresponding path program 1 times [2022-12-14 05:05:00,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:00,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449935847] [2022-12-14 05:05:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:00,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:00,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:00,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:00,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 05:05:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:01,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 05:05:01,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-12-14 05:05:01,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:01,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:01,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449935847] [2022-12-14 05:05:01,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449935847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:01,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:01,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:05:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852009359] [2022-12-14 05:05:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:01,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:05:01,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:05:01,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:05:01,704 INFO L87 Difference]: Start difference. First operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 05:05:01,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:01,768 INFO L93 Difference]: Finished difference Result 883 states and 1408 transitions. [2022-12-14 05:05:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:05:01,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2022-12-14 05:05:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:01,778 INFO L225 Difference]: With dead ends: 883 [2022-12-14 05:05:01,778 INFO L226 Difference]: Without dead ends: 441 [2022-12-14 05:05:01,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:05:01,787 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:01,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:05:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-12-14 05:05:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-12-14 05:05:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 253 states have (on average 1.2292490118577075) internal successors, (311), 256 states have internal predecessors, (311), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-12-14 05:05:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 629 transitions. [2022-12-14 05:05:01,861 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 629 transitions. Word has length 141 [2022-12-14 05:05:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:01,862 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 629 transitions. [2022-12-14 05:05:01,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 05:05:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 629 transitions. [2022-12-14 05:05:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-14 05:05:01,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:01,867 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:01,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:05:02,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:02,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash 858158561, now seen corresponding path program 1 times [2022-12-14 05:05:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838904862] [2022-12-14 05:05:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:02,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:02,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:02,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:02,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 05:05:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:03,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:05:03,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-12-14 05:05:03,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:03,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:03,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838904862] [2022-12-14 05:05:03,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838904862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:03,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:03,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:05:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633741012] [2022-12-14 05:05:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:03,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:05:03,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:03,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:05:03,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:05:03,165 INFO L87 Difference]: Start difference. First operand 441 states and 629 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 05:05:05,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:05,775 INFO L93 Difference]: Finished difference Result 848 states and 1227 transitions. [2022-12-14 05:05:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:05:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2022-12-14 05:05:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:05,780 INFO L225 Difference]: With dead ends: 848 [2022-12-14 05:05:05,780 INFO L226 Difference]: Without dead ends: 443 [2022-12-14 05:05:05,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:05:05,782 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 36 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:05,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2325 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 05:05:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-12-14 05:05:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-12-14 05:05:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 254 states have (on average 1.2283464566929134) internal successors, (312), 258 states have internal predecessors, (312), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (172), 158 states have call predecessors, (172), 158 states have call successors, (172) [2022-12-14 05:05:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 644 transitions. [2022-12-14 05:05:05,806 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 644 transitions. Word has length 156 [2022-12-14 05:05:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:05,807 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 644 transitions. [2022-12-14 05:05:05,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 05:05:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 644 transitions. [2022-12-14 05:05:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-14 05:05:05,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:05,809 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:05,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 05:05:06,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:06,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1065029687, now seen corresponding path program 1 times [2022-12-14 05:05:06,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:06,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817434880] [2022-12-14 05:05:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:06,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:06,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:06,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:06,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 05:05:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:06,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 05:05:06,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-12-14 05:05:07,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:07,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:07,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817434880] [2022-12-14 05:05:07,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817434880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:07,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:07,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 05:05:07,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274329485] [2022-12-14 05:05:07,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:07,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:05:07,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:07,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:05:07,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:05:07,202 INFO L87 Difference]: Start difference. First operand 443 states and 644 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-14 05:05:09,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:10,625 INFO L93 Difference]: Finished difference Result 871 states and 1300 transitions. [2022-12-14 05:05:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:05:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2022-12-14 05:05:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:10,629 INFO L225 Difference]: With dead ends: 871 [2022-12-14 05:05:10,629 INFO L226 Difference]: Without dead ends: 464 [2022-12-14 05:05:10,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:05:10,632 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 88 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:10,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3359 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 05:05:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-12-14 05:05:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2022-12-14 05:05:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-12-14 05:05:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-12-14 05:05:10,654 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 164 [2022-12-14 05:05:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:10,654 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-12-14 05:05:10,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-14 05:05:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-12-14 05:05:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-14 05:05:10,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:10,656 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:10,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 05:05:10,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:10,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:10,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1857914875, now seen corresponding path program 1 times [2022-12-14 05:05:10,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:10,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900186490] [2022-12-14 05:05:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:10,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:10,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:10,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:10,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 05:05:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:12,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 05:05:12,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-12-14 05:05:12,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:12,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900186490] [2022-12-14 05:05:12,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900186490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:12,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:12,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:05:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026073458] [2022-12-14 05:05:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:05:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:05:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:05:12,249 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-14 05:05:14,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:15,593 INFO L93 Difference]: Finished difference Result 896 states and 1375 transitions. [2022-12-14 05:05:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:05:15,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2022-12-14 05:05:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:15,598 INFO L225 Difference]: With dead ends: 896 [2022-12-14 05:05:15,598 INFO L226 Difference]: Without dead ends: 470 [2022-12-14 05:05:15,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:05:15,600 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 59 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:15,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 2862 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 05:05:15,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-12-14 05:05:15,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-12-14 05:05:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-12-14 05:05:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-12-14 05:05:15,621 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 179 [2022-12-14 05:05:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:15,622 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-12-14 05:05:15,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-14 05:05:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-12-14 05:05:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-14 05:05:15,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:15,624 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:15,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 05:05:15,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:15,826 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -276070034, now seen corresponding path program 1 times [2022-12-14 05:05:15,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:15,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882147468] [2022-12-14 05:05:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:15,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:15,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:15,837 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:15,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 05:05:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:17,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 05:05:17,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-14 05:05:17,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:17,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882147468] [2022-12-14 05:05:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882147468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:17,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:17,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 05:05:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305938200] [2022-12-14 05:05:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:05:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:05:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:05:17,504 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-14 05:05:20,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:22,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:22,323 INFO L93 Difference]: Finished difference Result 918 states and 1394 transitions. [2022-12-14 05:05:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:05:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-12-14 05:05:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:22,328 INFO L225 Difference]: With dead ends: 918 [2022-12-14 05:05:22,328 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 05:05:22,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:05:22,330 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 131 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:22,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3898 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 05:05:22,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 05:05:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-12-14 05:05:22,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 284 states have internal predecessors, (348), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-12-14 05:05:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 703 transitions. [2022-12-14 05:05:22,360 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 703 transitions. Word has length 195 [2022-12-14 05:05:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:22,360 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 703 transitions. [2022-12-14 05:05:22,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-14 05:05:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 703 transitions. [2022-12-14 05:05:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-14 05:05:22,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:22,364 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:22,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 05:05:22,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:22,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1136665260, now seen corresponding path program 2 times [2022-12-14 05:05:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:22,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073769319] [2022-12-14 05:05:22,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 05:05:22,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:22,569 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:22,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 05:05:23,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 05:05:23,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:05:23,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:05:23,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-12-14 05:05:23,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:23,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:23,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073769319] [2022-12-14 05:05:23,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073769319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:23,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:23,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:05:23,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518889557] [2022-12-14 05:05:23,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:23,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:05:23,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:23,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:05:23,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:05:23,141 INFO L87 Difference]: Start difference. First operand 474 states and 703 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 05:05:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:23,433 INFO L93 Difference]: Finished difference Result 482 states and 711 transitions. [2022-12-14 05:05:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:05:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 210 [2022-12-14 05:05:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:23,437 INFO L225 Difference]: With dead ends: 482 [2022-12-14 05:05:23,437 INFO L226 Difference]: Without dead ends: 480 [2022-12-14 05:05:23,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:05:23,438 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 5 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:23,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3088 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:05:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-12-14 05:05:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-12-14 05:05:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 287 states have internal predecessors, (351), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (193), 163 states have call predecessors, (193), 162 states have call successors, (193) [2022-12-14 05:05:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 708 transitions. [2022-12-14 05:05:23,461 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 708 transitions. Word has length 210 [2022-12-14 05:05:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:23,462 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 708 transitions. [2022-12-14 05:05:23,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 05:05:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 708 transitions. [2022-12-14 05:05:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-12-14 05:05:23,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:23,465 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:23,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 05:05:23,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:23,667 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:23,668 INFO L85 PathProgramCache]: Analyzing trace with hash -316043586, now seen corresponding path program 3 times [2022-12-14 05:05:23,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:23,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326225582] [2022-12-14 05:05:23,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:05:23,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:23,679 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:23,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 05:05:27,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 05:05:27,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:05:27,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:05:27,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-12-14 05:05:28,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:28,050 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:28,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326225582] [2022-12-14 05:05:28,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326225582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:28,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:28,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:05:28,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199490601] [2022-12-14 05:05:28,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:28,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:05:28,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:28,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:05:28,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:05:28,053 INFO L87 Difference]: Start difference. First operand 479 states and 708 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 05:05:29,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:29,134 INFO L93 Difference]: Finished difference Result 879 states and 1331 transitions. [2022-12-14 05:05:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:05:29,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 225 [2022-12-14 05:05:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:29,139 INFO L225 Difference]: With dead ends: 879 [2022-12-14 05:05:29,139 INFO L226 Difference]: Without dead ends: 479 [2022-12-14 05:05:29,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:05:29,142 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:29,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2849 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 05:05:29,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-12-14 05:05:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2022-12-14 05:05:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 287 states have internal predecessors, (351), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2022-12-14 05:05:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 707 transitions. [2022-12-14 05:05:29,166 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 707 transitions. Word has length 225 [2022-12-14 05:05:29,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:29,166 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 707 transitions. [2022-12-14 05:05:29,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 05:05:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 707 transitions. [2022-12-14 05:05:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 05:05:29,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:29,169 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:29,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 05:05:29,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:29,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:29,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1963925568, now seen corresponding path program 1 times [2022-12-14 05:05:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:29,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458151804] [2022-12-14 05:05:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:29,373 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:29,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 05:05:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:31,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2190 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 05:05:31,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-12-14 05:05:31,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:31,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:31,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458151804] [2022-12-14 05:05:31,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458151804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:31,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:31,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:05:31,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063583633] [2022-12-14 05:05:31,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:31,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:05:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:31,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:05:31,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:05:31,652 INFO L87 Difference]: Start difference. First operand 479 states and 707 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:05:35,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:37,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:39,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:42,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:42,448 INFO L93 Difference]: Finished difference Result 958 states and 1476 transitions. [2022-12-14 05:05:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:05:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 240 [2022-12-14 05:05:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:42,455 INFO L225 Difference]: With dead ends: 958 [2022-12-14 05:05:42,455 INFO L226 Difference]: Without dead ends: 515 [2022-12-14 05:05:42,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:05:42,458 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 23 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:42,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2969 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 05:05:42,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-12-14 05:05:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 487. [2022-12-14 05:05:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 291 states have (on average 1.2405498281786942) internal successors, (361), 295 states have internal predecessors, (361), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2022-12-14 05:05:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 717 transitions. [2022-12-14 05:05:42,485 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 717 transitions. Word has length 240 [2022-12-14 05:05:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:42,486 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 717 transitions. [2022-12-14 05:05:42,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:05:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 717 transitions. [2022-12-14 05:05:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 05:05:42,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:42,488 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:42,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-12-14 05:05:42,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:42,689 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:42,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash -932088126, now seen corresponding path program 1 times [2022-12-14 05:05:42,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:42,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986905308] [2022-12-14 05:05:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:42,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:42,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:42,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:42,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 05:05:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:44,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 05:05:44,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-12-14 05:05:45,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:45,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:05:45,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986905308] [2022-12-14 05:05:45,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986905308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:45,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:45,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 05:05:45,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679639576] [2022-12-14 05:05:45,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:45,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:05:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:05:45,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:05:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:05:45,303 INFO L87 Difference]: Start difference. First operand 487 states and 717 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:05:49,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:51,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:53,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:57,411 INFO L93 Difference]: Finished difference Result 968 states and 1486 transitions. [2022-12-14 05:05:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 05:05:57,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 240 [2022-12-14 05:05:57,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:57,419 INFO L225 Difference]: With dead ends: 968 [2022-12-14 05:05:57,419 INFO L226 Difference]: Without dead ends: 517 [2022-12-14 05:05:57,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:05:57,422 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 20 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:57,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3598 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-12-14 05:05:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-12-14 05:05:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 491. [2022-12-14 05:05:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 295 states have (on average 1.2372881355932204) internal successors, (365), 299 states have internal predecessors, (365), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2022-12-14 05:05:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 721 transitions. [2022-12-14 05:05:57,449 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 721 transitions. Word has length 240 [2022-12-14 05:05:57,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:57,449 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 721 transitions. [2022-12-14 05:05:57,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:05:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 721 transitions. [2022-12-14 05:05:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 05:05:57,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:57,452 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:57,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 05:05:57,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:57,653 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash -568621628, now seen corresponding path program 1 times [2022-12-14 05:05:57,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:05:57,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739546202] [2022-12-14 05:05:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:57,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:05:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:05:57,666 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:05:57,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 05:05:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:59,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:05:59,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 192 proven. 3 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-12-14 05:05:59,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-12-14 05:06:00,210 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:00,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739546202] [2022-12-14 05:06:00,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739546202] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [121713532] [2022-12-14 05:06:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:00,211 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:00,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:00,240 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:00,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-12-14 05:06:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:01,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 05:06:01,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-12-14 05:06:01,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:01,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [121713532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:01,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:01,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2022-12-14 05:06:01,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006267588] [2022-12-14 05:06:01,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:01,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:06:01,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:01,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:06:01,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:06:01,728 INFO L87 Difference]: Start difference. First operand 491 states and 721 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-14 05:06:04,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:06:04,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:06:04,972 INFO L93 Difference]: Finished difference Result 912 states and 1360 transitions. [2022-12-14 05:06:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:06:04,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 240 [2022-12-14 05:06:04,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:06:04,977 INFO L225 Difference]: With dead ends: 912 [2022-12-14 05:06:04,978 INFO L226 Difference]: Without dead ends: 493 [2022-12-14 05:06:04,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 05:06:04,980 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 82 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:06:04,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2822 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 05:06:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-14 05:06:04,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2022-12-14 05:06:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 296 states have (on average 1.2364864864864864) internal successors, (366), 301 states have internal predecessors, (366), 164 states have call successors, (164), 29 states have call predecessors, (164), 31 states have return successors, (203), 163 states have call predecessors, (203), 162 states have call successors, (203) [2022-12-14 05:06:05,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 733 transitions. [2022-12-14 05:06:05,001 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 733 transitions. Word has length 240 [2022-12-14 05:06:05,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:06:05,002 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 733 transitions. [2022-12-14 05:06:05,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-14 05:06:05,002 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 733 transitions. [2022-12-14 05:06:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 05:06:05,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:06:05,009 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:06:05,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2022-12-14 05:06:05,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-14 05:06:05,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:05,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:06:05,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:06:05,414 INFO L85 PathProgramCache]: Analyzing trace with hash -379114324, now seen corresponding path program 1 times [2022-12-14 05:06:05,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:06:05,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382066167] [2022-12-14 05:06:05,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:05,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:05,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:06:05,418 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:06:05,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 05:06:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:07,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:07,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 204 proven. 3 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-12-14 05:06:07,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:08,014 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-12-14 05:06:08,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:08,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382066167] [2022-12-14 05:06:08,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382066167] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:08,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1793339773] [2022-12-14 05:06:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:08,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:08,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:08,016 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:08,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-12-14 05:06:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:09,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 05:06:09,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-12-14 05:06:10,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:10,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1793339773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:10,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:10,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 13 [2022-12-14 05:06:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667907949] [2022-12-14 05:06:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:10,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:06:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:10,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:06:10,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-14 05:06:10,009 INFO L87 Difference]: Start difference. First operand 493 states and 733 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-14 05:06:12,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:06:14,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:06:14,780 INFO L93 Difference]: Finished difference Result 936 states and 1411 transitions. [2022-12-14 05:06:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:06:14,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 248 [2022-12-14 05:06:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:06:14,785 INFO L225 Difference]: With dead ends: 936 [2022-12-14 05:06:14,785 INFO L226 Difference]: Without dead ends: 515 [2022-12-14 05:06:14,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:06:14,788 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 134 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:06:14,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 3810 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 05:06:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-12-14 05:06:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 513. [2022-12-14 05:06:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 315 states have (on average 1.2412698412698413) internal successors, (391), 319 states have internal predecessors, (391), 165 states have call successors, (165), 29 states have call predecessors, (165), 31 states have return successors, (204), 165 states have call predecessors, (204), 163 states have call successors, (204) [2022-12-14 05:06:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 760 transitions. [2022-12-14 05:06:14,817 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 760 transitions. Word has length 248 [2022-12-14 05:06:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:06:14,818 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 760 transitions. [2022-12-14 05:06:14,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-14 05:06:14,818 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 760 transitions. [2022-12-14 05:06:14,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 05:06:14,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:06:14,819 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:06:14,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-12-14 05:06:15,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-12-14 05:06:15,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:15,222 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:06:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:06:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1992998126, now seen corresponding path program 1 times [2022-12-14 05:06:15,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:06:15,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455379726] [2022-12-14 05:06:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:15,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:15,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:06:15,235 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:06:15,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-14 05:06:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:17,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 2327 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:17,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:17,506 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 234 proven. 3 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-12-14 05:06:17,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-12-14 05:06:17,912 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:17,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455379726] [2022-12-14 05:06:17,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455379726] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:17,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [672008890] [2022-12-14 05:06:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:17,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:17,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-12-14 05:06:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:19,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 2327 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 05:06:19,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-12-14 05:06:19,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:19,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [672008890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:19,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:19,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 12 [2022-12-14 05:06:19,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952098872] [2022-12-14 05:06:19,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:19,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:06:19,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:19,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:06:19,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:06:19,726 INFO L87 Difference]: Start difference. First operand 513 states and 760 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-14 05:06:22,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:06:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:06:24,057 INFO L93 Difference]: Finished difference Result 962 states and 1464 transitions. [2022-12-14 05:06:24,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:06:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 263 [2022-12-14 05:06:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:06:24,061 INFO L225 Difference]: With dead ends: 962 [2022-12-14 05:06:24,061 INFO L226 Difference]: Without dead ends: 521 [2022-12-14 05:06:24,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:06:24,063 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 105 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:06:24,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3342 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 05:06:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-12-14 05:06:24,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 513. [2022-12-14 05:06:24,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 315 states have (on average 1.2412698412698413) internal successors, (391), 319 states have internal predecessors, (391), 165 states have call successors, (165), 29 states have call predecessors, (165), 31 states have return successors, (204), 165 states have call predecessors, (204), 163 states have call successors, (204) [2022-12-14 05:06:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 760 transitions. [2022-12-14 05:06:24,083 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 760 transitions. Word has length 263 [2022-12-14 05:06:24,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:06:24,084 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 760 transitions. [2022-12-14 05:06:24,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-14 05:06:24,084 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 760 transitions. [2022-12-14 05:06:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-12-14 05:06:24,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:06:24,086 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:06:24,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2022-12-14 05:06:24,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-14 05:06:24,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:24,487 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:06:24,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:06:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash -933972453, now seen corresponding path program 1 times [2022-12-14 05:06:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:06:24,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104566985] [2022-12-14 05:06:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:24,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:24,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:06:24,491 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:06:24,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-14 05:06:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:26,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:26,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 254 proven. 3 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-12-14 05:06:27,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-12-14 05:06:27,451 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:27,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104566985] [2022-12-14 05:06:27,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104566985] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:27,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [701068435] [2022-12-14 05:06:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:27,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:27,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:27,452 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:27,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-12-14 05:06:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:28,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:28,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-14 05:06:29,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:29,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [701068435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:29,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:29,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 7] total 14 [2022-12-14 05:06:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362303391] [2022-12-14 05:06:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:29,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:06:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:06:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-14 05:06:29,885 INFO L87 Difference]: Start difference. First operand 513 states and 760 transitions. Second operand has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-12-14 05:06:33,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:06:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:06:36,450 INFO L93 Difference]: Finished difference Result 956 states and 1435 transitions. [2022-12-14 05:06:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 05:06:36,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 279 [2022-12-14 05:06:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:06:36,455 INFO L225 Difference]: With dead ends: 956 [2022-12-14 05:06:36,455 INFO L226 Difference]: Without dead ends: 515 [2022-12-14 05:06:36,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-12-14 05:06:36,457 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 177 mSDsluCounter, 3763 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:06:36,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 4339 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 05:06:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-12-14 05:06:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 491. [2022-12-14 05:06:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 295 states have (on average 1.2372881355932204) internal successors, (365), 299 states have internal predecessors, (365), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (189), 163 states have call predecessors, (189), 162 states have call successors, (189) [2022-12-14 05:06:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 718 transitions. [2022-12-14 05:06:36,486 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 718 transitions. Word has length 279 [2022-12-14 05:06:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:06:36,486 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 718 transitions. [2022-12-14 05:06:36,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-12-14 05:06:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 718 transitions. [2022-12-14 05:06:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 05:06:36,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:06:36,488 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:06:36,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-12-14 05:06:36,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-12-14 05:06:36,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:36,891 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:06:36,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:06:36,892 INFO L85 PathProgramCache]: Analyzing trace with hash -771846725, now seen corresponding path program 1 times [2022-12-14 05:06:36,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:06:36,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162766679] [2022-12-14 05:06:36,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:36,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:36,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:06:36,898 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:06:36,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-14 05:06:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:38,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:38,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 284 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-14 05:06:39,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-12-14 05:06:39,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:39,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162766679] [2022-12-14 05:06:39,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162766679] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:39,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1105236437] [2022-12-14 05:06:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:39,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:39,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:39,768 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:39,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-12-14 05:06:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:41,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:06:41,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-14 05:06:41,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:41,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1105236437] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:41,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:41,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7] total 10 [2022-12-14 05:06:41,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363028372] [2022-12-14 05:06:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:41,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:06:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:06:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:06:41,278 INFO L87 Difference]: Start difference. First operand 491 states and 718 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 05:06:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:06:42,526 INFO L93 Difference]: Finished difference Result 907 states and 1335 transitions. [2022-12-14 05:06:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:06:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 294 [2022-12-14 05:06:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:06:42,530 INFO L225 Difference]: With dead ends: 907 [2022-12-14 05:06:42,530 INFO L226 Difference]: Without dead ends: 491 [2022-12-14 05:06:42,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:06:42,532 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:06:42,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2274 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 05:06:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-12-14 05:06:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2022-12-14 05:06:42,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 295 states have (on average 1.2338983050847459) internal successors, (364), 299 states have internal predecessors, (364), 164 states have call successors, (164), 29 states have call predecessors, (164), 30 states have return successors, (189), 163 states have call predecessors, (189), 162 states have call successors, (189) [2022-12-14 05:06:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 717 transitions. [2022-12-14 05:06:42,559 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 717 transitions. Word has length 294 [2022-12-14 05:06:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:06:42,559 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 717 transitions. [2022-12-14 05:06:42,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 05:06:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 717 transitions. [2022-12-14 05:06:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 05:06:42,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:06:42,561 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:06:42,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-12-14 05:06:42,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-12-14 05:06:42,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:42,964 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:06:42,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:06:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash -848747523, now seen corresponding path program 1 times [2022-12-14 05:06:42,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:06:42,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293783381] [2022-12-14 05:06:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:42,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:06:42,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:06:42,971 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:06:42,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-12-14 05:06:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:45,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:06:45,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 284 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-14 05:06:45,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:06:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-12-14 05:06:45,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:06:45,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293783381] [2022-12-14 05:06:45,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293783381] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:06:45,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1199084850] [2022-12-14 05:06:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:06:45,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:06:45,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:06:45,962 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:06:45,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-12-14 05:06:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:06:50,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 05:06:50,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:06:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-12-14 05:06:53,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:06:53,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1199084850] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:53,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:06:53,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7] total 17 [2022-12-14 05:06:53,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046182002] [2022-12-14 05:06:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:53,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 05:06:53,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:06:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 05:06:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-12-14 05:06:53,463 INFO L87 Difference]: Start difference. First operand 491 states and 717 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-12-14 05:07:01,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:07:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:12,932 INFO L93 Difference]: Finished difference Result 1002 states and 1541 transitions. [2022-12-14 05:07:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 05:07:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 294 [2022-12-14 05:07:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:12,938 INFO L225 Difference]: With dead ends: 1002 [2022-12-14 05:07:12,938 INFO L226 Difference]: Without dead ends: 547 [2022-12-14 05:07:12,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-12-14 05:07:12,941 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 102 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:12,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 5412 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 1 Unknown, 0 Unchecked, 17.8s Time] [2022-12-14 05:07:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-12-14 05:07:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 513. [2022-12-14 05:07:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 315 states have (on average 1.2380952380952381) internal successors, (390), 319 states have internal predecessors, (390), 164 states have call successors, (164), 29 states have call predecessors, (164), 32 states have return successors, (206), 165 states have call predecessors, (206), 162 states have call successors, (206) [2022-12-14 05:07:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 760 transitions. [2022-12-14 05:07:12,960 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 760 transitions. Word has length 294 [2022-12-14 05:07:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:12,960 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 760 transitions. [2022-12-14 05:07:12,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-12-14 05:07:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 760 transitions. [2022-12-14 05:07:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 05:07:12,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:12,962 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:13,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-12-14 05:07:13,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2022-12-14 05:07:13,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 05:07:13,363 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1426325895, now seen corresponding path program 1 times [2022-12-14 05:07:13,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:13,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372627907] [2022-12-14 05:07:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:13,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:13,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:13,369 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:13,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-12-14 05:07:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:15,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:07:15,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-12-14 05:07:15,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:07:15,484 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:07:15,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372627907] [2022-12-14 05:07:15,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372627907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:07:15,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:07:15,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:07:15,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096167293] [2022-12-14 05:07:15,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:07:15,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:07:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:07:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:07:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:07:15,486 INFO L87 Difference]: Start difference. First operand 513 states and 760 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:07:15,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:15,685 INFO L93 Difference]: Finished difference Result 1018 states and 1564 transitions. [2022-12-14 05:07:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:07:15,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 294 [2022-12-14 05:07:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:15,688 INFO L225 Difference]: With dead ends: 1018 [2022-12-14 05:07:15,688 INFO L226 Difference]: Without dead ends: 541 [2022-12-14 05:07:15,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:07:15,691 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 8 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:15,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2582 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:07:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-12-14 05:07:15,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 529. [2022-12-14 05:07:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 331 states have (on average 1.2386706948640482) internal successors, (410), 335 states have internal predecessors, (410), 164 states have call successors, (164), 29 states have call predecessors, (164), 32 states have return successors, (206), 165 states have call predecessors, (206), 162 states have call successors, (206) [2022-12-14 05:07:15,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 780 transitions. [2022-12-14 05:07:15,710 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 780 transitions. Word has length 294 [2022-12-14 05:07:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:15,710 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 780 transitions. [2022-12-14 05:07:15,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:07:15,710 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 780 transitions. [2022-12-14 05:07:15,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 05:07:15,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:15,712 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:15,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-12-14 05:07:15,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:15,913 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:15,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:15,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1753433593, now seen corresponding path program 1 times [2022-12-14 05:07:15,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:15,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738075690] [2022-12-14 05:07:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:15,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:15,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:15,917 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:15,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-12-14 05:07:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:17,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2478 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:07:17,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-12-14 05:07:18,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:07:18,046 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:07:18,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738075690] [2022-12-14 05:07:18,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738075690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:07:18,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:07:18,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:07:18,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918532233] [2022-12-14 05:07:18,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:07:18,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:07:18,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:07:18,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:07:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:07:18,047 INFO L87 Difference]: Start difference. First operand 529 states and 780 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:07:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:18,190 INFO L93 Difference]: Finished difference Result 1022 states and 1579 transitions. [2022-12-14 05:07:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:07:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 294 [2022-12-14 05:07:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:18,195 INFO L225 Difference]: With dead ends: 1022 [2022-12-14 05:07:18,196 INFO L226 Difference]: Without dead ends: 529 [2022-12-14 05:07:18,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:07:18,199 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 7 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:18,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1876 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:07:18,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-12-14 05:07:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2022-12-14 05:07:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 331 states have (on average 1.2326283987915407) internal successors, (408), 335 states have internal predecessors, (408), 164 states have call successors, (164), 29 states have call predecessors, (164), 32 states have return successors, (206), 165 states have call predecessors, (206), 162 states have call successors, (206) [2022-12-14 05:07:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 778 transitions. [2022-12-14 05:07:18,216 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 778 transitions. Word has length 294 [2022-12-14 05:07:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:18,217 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 778 transitions. [2022-12-14 05:07:18,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:07:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 778 transitions. [2022-12-14 05:07:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 05:07:18,218 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:18,218 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:18,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-12-14 05:07:18,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:18,419 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash 630543217, now seen corresponding path program 1 times [2022-12-14 05:07:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995862421] [2022-12-14 05:07:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:18,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:18,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:18,432 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:18,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-12-14 05:07:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:20,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:07:20,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-14 05:07:21,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:07:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-12-14 05:07:21,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:07:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995862421] [2022-12-14 05:07:21,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995862421] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:07:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388716243] [2022-12-14 05:07:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:21,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:07:21,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:07:21,426 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:07:21,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-12-14 05:07:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:34,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:07:34,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-14 05:07:34,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:07:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-12-14 05:07:34,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1388716243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:07:34,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621047626] [2022-12-14 05:07:34,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:34,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:07:34,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:07:34,961 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:07:34,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-14 05:07:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:36,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:07:36,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-14 05:07:37,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:07:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-12-14 05:07:37,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621047626] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:07:37,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 05:07:37,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 7 [2022-12-14 05:07:37,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154500934] [2022-12-14 05:07:37,520 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 05:07:37,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:07:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:07:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:07:37,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:07:37,523 INFO L87 Difference]: Start difference. First operand 529 states and 778 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 05:07:39,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:07:41,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:07:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:41,924 INFO L93 Difference]: Finished difference Result 1008 states and 1499 transitions. [2022-12-14 05:07:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:07:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 298 [2022-12-14 05:07:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:41,928 INFO L225 Difference]: With dead ends: 1008 [2022-12-14 05:07:41,928 INFO L226 Difference]: Without dead ends: 546 [2022-12-14 05:07:41,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1782 GetRequests, 1777 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:07:41,930 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 8 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:41,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3749 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 05:07:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-12-14 05:07:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2022-12-14 05:07:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 342 states have (on average 1.2339181286549707) internal successors, (422), 346 states have internal predecessors, (422), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (216), 169 states have call predecessors, (216), 165 states have call successors, (216) [2022-12-14 05:07:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 805 transitions. [2022-12-14 05:07:41,947 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 805 transitions. Word has length 298 [2022-12-14 05:07:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:41,947 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 805 transitions. [2022-12-14 05:07:41,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 05:07:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 805 transitions. [2022-12-14 05:07:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 05:07:41,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:41,949 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:42,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-12-14 05:07:42,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-12-14 05:07:42,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2022-12-14 05:07:42,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 05:07:42,552 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:42,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1770090193, now seen corresponding path program 1 times [2022-12-14 05:07:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:42,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332634134] [2022-12-14 05:07:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:42,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:42,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:42,565 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:42,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-14 05:07:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:45,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 05:07:45,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 3 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-12-14 05:07:45,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:07:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-12-14 05:07:46,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:07:46,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332634134] [2022-12-14 05:07:46,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332634134] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:07:46,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1680946873] [2022-12-14 05:07:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:46,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:07:46,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:07:46,521 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:07:46,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-12-14 05:07:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:48,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:07:48,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-12-14 05:07:48,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:07:48,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1680946873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:07:48,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:07:48,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 10 [2022-12-14 05:07:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669355487] [2022-12-14 05:07:48,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:07:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:07:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:07:48,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:07:48,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:07:48,295 INFO L87 Difference]: Start difference. First operand 544 states and 805 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 05:07:50,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:07:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:51,678 INFO L93 Difference]: Finished difference Result 1006 states and 1495 transitions. [2022-12-14 05:07:51,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:07:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 298 [2022-12-14 05:07:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:51,684 INFO L225 Difference]: With dead ends: 1006 [2022-12-14 05:07:51,684 INFO L226 Difference]: Without dead ends: 532 [2022-12-14 05:07:51,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:07:51,688 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:51,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 05:07:51,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-12-14 05:07:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-12-14 05:07:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 333 states have (on average 1.2282282282282282) internal successors, (409), 338 states have internal predecessors, (409), 164 states have call successors, (164), 29 states have call predecessors, (164), 33 states have return successors, (209), 165 states have call predecessors, (209), 162 states have call successors, (209) [2022-12-14 05:07:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 782 transitions. [2022-12-14 05:07:51,723 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 782 transitions. Word has length 298 [2022-12-14 05:07:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:51,723 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 782 transitions. [2022-12-14 05:07:51,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 05:07:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 782 transitions. [2022-12-14 05:07:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-12-14 05:07:51,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:51,726 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:51,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2022-12-14 05:07:52,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-12-14 05:07:52,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:52,128 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash 449559037, now seen corresponding path program 1 times [2022-12-14 05:07:52,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:52,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738718580] [2022-12-14 05:07:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:52,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:52,141 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:52,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-12-14 05:07:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2516 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 05:07:54,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:07:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-12-14 05:07:54,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:07:54,936 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:07:54,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738718580] [2022-12-14 05:07:54,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738718580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:07:54,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:07:54,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 05:07:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221147818] [2022-12-14 05:07:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:07:54,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:07:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:07:54,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:07:54,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:07:54,938 INFO L87 Difference]: Start difference. First operand 532 states and 782 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 05:07:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:07:57,228 INFO L93 Difference]: Finished difference Result 1028 states and 1515 transitions. [2022-12-14 05:07:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:07:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 309 [2022-12-14 05:07:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:07:57,233 INFO L225 Difference]: With dead ends: 1028 [2022-12-14 05:07:57,233 INFO L226 Difference]: Without dead ends: 532 [2022-12-14 05:07:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:07:57,236 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:07:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4002 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 05:07:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-12-14 05:07:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-12-14 05:07:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 333 states have (on average 1.2282282282282282) internal successors, (409), 338 states have internal predecessors, (409), 164 states have call successors, (164), 29 states have call predecessors, (164), 33 states have return successors, (208), 165 states have call predecessors, (208), 162 states have call successors, (208) [2022-12-14 05:07:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 781 transitions. [2022-12-14 05:07:57,266 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 781 transitions. Word has length 309 [2022-12-14 05:07:57,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:07:57,266 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 781 transitions. [2022-12-14 05:07:57,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 05:07:57,266 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 781 transitions. [2022-12-14 05:07:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-12-14 05:07:57,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:07:57,269 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:07:57,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-12-14 05:07:57,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:57,470 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:07:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:07:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2062315077, now seen corresponding path program 1 times [2022-12-14 05:07:57,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:07:57,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881963241] [2022-12-14 05:07:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:07:57,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:07:57,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:07:57,473 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:07:57,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-12-14 05:07:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:07:59,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 05:07:59,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:08:03,241 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64))))))) is different from true [2022-12-14 05:08:05,579 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64))))))) is different from true [2022-12-14 05:08:08,334 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64))))))) is different from true [2022-12-14 05:08:14,930 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:21,265 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:27,625 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:33,934 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:34,520 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 31 treesize of output 19 [2022-12-14 05:08:34,532 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 25 treesize of output 13 [2022-12-14 05:08:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 28 not checked. [2022-12-14 05:08:34,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:08:43,447 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:51,850 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:09:00,260 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:09:08,724 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:09:12,693 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-14 05:09:12,694 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 30 treesize of output 25 [2022-12-14 05:09:12,760 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-12-14 05:09:12,760 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 24 treesize of output 12 [2022-12-14 05:09:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-12-14 05:09:12,979 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:09:12,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881963241] [2022-12-14 05:09:12,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881963241] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:09:12,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296172382] [2022-12-14 05:09:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:12,980 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 05:09:12,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 05:09:12,981 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 05:09:12,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-12-14 05:09:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:26,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 05:09:26,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:09:41,189 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 25 treesize of output 17 [2022-12-14 05:09:41,202 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 21 treesize of output 13 [2022-12-14 05:09:41,240 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-12-14 05:09:41,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:09:41,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [296172382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:41,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:09:41,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18, 15] total 32 [2022-12-14 05:09:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479758756] [2022-12-14 05:09:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:41,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 05:09:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:09:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 05:09:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=726, Unknown=11, NotChecked=168, Total=992 [2022-12-14 05:09:41,242 INFO L87 Difference]: Start difference. First operand 532 states and 781 transitions. Second operand has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-14 05:09:44,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:09:46,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:09:48,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:09:50,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:09:52,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:09:56,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:08,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:10,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:13,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:15,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:18,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:22,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:24,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:27,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:29,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:33,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:37,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:39,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:42,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:44,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:47,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:49,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:10:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:49,695 INFO L93 Difference]: Finished difference Result 1052 states and 1595 transitions. [2022-12-14 05:10:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 05:10:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) Word has length 320 [2022-12-14 05:10:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:49,703 INFO L225 Difference]: With dead ends: 1052 [2022-12-14 05:10:49,703 INFO L226 Difference]: Without dead ends: 588 [2022-12-14 05:10:49,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 921 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 86.5s TimeCoverageRelationStatistics Valid=148, Invalid=1183, Unknown=13, NotChecked=216, Total=1560 [2022-12-14 05:10:49,706 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 93 mSDsluCounter, 6708 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 11 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:49,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 7315 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1328 Invalid, 22 Unknown, 0 Unchecked, 61.6s Time] [2022-12-14 05:10:49,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-12-14 05:10:49,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 568. [2022-12-14 05:10:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 356 states have (on average 1.2191011235955056) internal successors, (434), 363 states have internal predecessors, (434), 171 states have call successors, (171), 33 states have call predecessors, (171), 39 states have return successors, (231), 172 states have call predecessors, (231), 169 states have call successors, (231) [2022-12-14 05:10:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 836 transitions. [2022-12-14 05:10:49,726 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 836 transitions. Word has length 320 [2022-12-14 05:10:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:49,726 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 836 transitions. [2022-12-14 05:10:49,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-14 05:10:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 836 transitions. [2022-12-14 05:10:49,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 05:10:49,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:49,728 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:49,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2022-12-14 05:10:49,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-12-14 05:10:50,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:50,130 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:10:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:50,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1845279991, now seen corresponding path program 1 times [2022-12-14 05:10:50,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:10:50,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134068394] [2022-12-14 05:10:50,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:50,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:10:50,142 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:10:50,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-12-14 05:10:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:52,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:10:52,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-12-14 05:10:52,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:10:52,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:10:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134068394] [2022-12-14 05:10:52,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134068394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:52,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:52,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:10:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432852614] [2022-12-14 05:10:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:10:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:10:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:10:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:10:52,387 INFO L87 Difference]: Start difference. First operand 568 states and 836 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 05:10:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:52,646 INFO L93 Difference]: Finished difference Result 1076 states and 1640 transitions. [2022-12-14 05:10:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:10:52,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 325 [2022-12-14 05:10:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:52,652 INFO L225 Difference]: With dead ends: 1076 [2022-12-14 05:10:52,652 INFO L226 Difference]: Without dead ends: 573 [2022-12-14 05:10:52,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:10:52,655 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 7 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:52,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1851 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:52,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-12-14 05:10:52,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 569. [2022-12-14 05:10:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 357 states have (on average 1.218487394957983) internal successors, (435), 364 states have internal predecessors, (435), 171 states have call successors, (171), 33 states have call predecessors, (171), 39 states have return successors, (231), 172 states have call predecessors, (231), 169 states have call successors, (231) [2022-12-14 05:10:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 837 transitions. [2022-12-14 05:10:52,690 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 837 transitions. Word has length 325 [2022-12-14 05:10:52,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:52,690 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 837 transitions. [2022-12-14 05:10:52,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 05:10:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 837 transitions. [2022-12-14 05:10:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 05:10:52,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:52,693 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:52,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-12-14 05:10:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:52,894 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:10:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -657393294, now seen corresponding path program 1 times [2022-12-14 05:10:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:10:52,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508984683] [2022-12-14 05:10:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:52,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:52,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:10:52,898 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:10:52,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-12-14 05:10:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:55,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:10:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-12-14 05:10:55,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:10:55,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:10:55,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508984683] [2022-12-14 05:10:55,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508984683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:55,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:55,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 05:10:55,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243096475] [2022-12-14 05:10:55,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:55,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:10:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:10:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:10:55,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:10:55,684 INFO L87 Difference]: Start difference. First operand 569 states and 837 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 05:10:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:58,816 INFO L93 Difference]: Finished difference Result 1084 states and 1641 transitions. [2022-12-14 05:10:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 05:10:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 325 [2022-12-14 05:10:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:58,821 INFO L225 Difference]: With dead ends: 1084 [2022-12-14 05:10:58,821 INFO L226 Difference]: Without dead ends: 583 [2022-12-14 05:10:58,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 05:10:58,824 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 5 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:58,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5289 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 05:10:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-12-14 05:10:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 576. [2022-12-14 05:10:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 362 states have (on average 1.2154696132596685) internal successors, (440), 370 states have internal predecessors, (440), 171 states have call successors, (171), 33 states have call predecessors, (171), 41 states have return successors, (250), 173 states have call predecessors, (250), 169 states have call successors, (250) [2022-12-14 05:10:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 861 transitions. [2022-12-14 05:10:58,852 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 861 transitions. Word has length 325 [2022-12-14 05:10:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:58,853 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 861 transitions. [2022-12-14 05:10:58,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 05:10:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 861 transitions. [2022-12-14 05:10:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-12-14 05:10:58,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:58,856 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:58,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-12-14 05:10:59,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:59,056 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:10:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2147422091, now seen corresponding path program 1 times [2022-12-14 05:10:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:10:59,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133518597] [2022-12-14 05:10:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:10:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:10:59,060 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:10:59,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d6a7b6-4225-44be-84c0-b7be78ad1ca4/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process