./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V --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 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:28:57,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:28:57,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:28:57,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:28:57,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:28:57,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:28:57,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:28:57,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:28:57,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:28:57,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:28:57,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:28:57,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:28:57,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:28:57,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:28:57,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:28:57,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:28:57,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:28:57,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:28:57,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:28:57,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:28:57,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:28:57,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:28:57,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:28:57,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:28:57,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:28:57,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:28:57,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:28:57,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:28:57,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:28:57,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:28:57,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:28:57,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:28:57,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:28:57,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:28:57,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:28:57,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:28:57,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:28:57,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:28:57,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:28:57,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:28:57,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:28:57,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:28:57,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:28:57,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:28:57,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:28:57,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:28:57,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:28:57,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:28:57,172 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:28:57,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:28:57,173 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:28:57,173 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:28:57,173 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:28:57,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:28:57,174 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:28:57,174 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:28:57,174 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:28:57,175 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:28:57,175 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:28:57,175 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:28:57,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:28:57,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:28:57,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:28:57,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:28:57,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:28:57,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:28:57,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:28:57,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:28:57,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:28:57,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:28:57,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:28:57,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:28:57,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:28:57,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:28:57,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:28:57,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:28:57,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:28:57,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:28:57,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:28:57,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:28:57,186 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 [2021-11-23 02:28:57,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:28:57,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:28:57,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:28:57,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:28:57,606 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:28:57,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-23 02:28:57,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/data/79bca1dbc/eb2799417f6143cc981503e0ae336746/FLAG9982b5093 [2021-11-23 02:28:58,871 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:28:58,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-23 02:28:58,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/data/79bca1dbc/eb2799417f6143cc981503e0ae336746/FLAG9982b5093 [2021-11-23 02:28:59,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/data/79bca1dbc/eb2799417f6143cc981503e0ae336746 [2021-11-23 02:28:59,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:28:59,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:28:59,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:28:59,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:28:59,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:28:59,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:59" (1/1) ... [2021-11-23 02:28:59,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f815f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:59, skipping insertion in model container [2021-11-23 02:28:59,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:59" (1/1) ... [2021-11-23 02:28:59,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:28:59,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:28:59,735 WARN L230 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_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-23 02:28:59,743 WARN L230 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_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-23 02:29:00,806 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 02:29:00,880 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,882 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,884 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,901 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,901 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,904 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:00,905 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:01,463 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 02:29:01,466 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 02:29:01,467 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 02:29:01,474 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 02:29:01,483 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 02:29:01,484 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 02:29:01,485 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 02:29:01,490 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 02:29:01,491 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 02:29:01,493 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 02:29:01,708 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:01,709 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:01,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:29:01,943 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:29:01,975 WARN L230 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_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-23 02:29:01,984 WARN L230 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_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-23 02:29:02,064 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 02:29:02,099 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,102 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,104 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,117 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,118 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,120 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,120 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,189 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 02:29:02,190 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 02:29:02,191 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 02:29:02,193 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 02:29:02,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 02:29:02,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 02:29:02,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 02:29:02,200 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 02:29:02,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 02:29:02,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 02:29:02,269 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,269 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:29:02,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:29:02,663 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:29:02,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02 WrapperNode [2021-11-23 02:29:02,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:29:02,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:29:02,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:29:02,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:29:02,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:02,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:02,950 INFO L137 Inliner]: procedures = 689, calls = 1536, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 719 [2021-11-23 02:29:02,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:29:02,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:29:02,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:29:02,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:29:02,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:02,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:02,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:02,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:03,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:03,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:03,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:03,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:29:03,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:29:03,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:29:03,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:29:03,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (1/1) ... [2021-11-23 02:29:03,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:29:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:03,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:29:03,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:29:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-23 02:29:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-23 02:29:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:29:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-23 02:29:03,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-23 02:29:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-23 02:29:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-23 02:29:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-23 02:29:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-23 02:29:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:29:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-23 02:29:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-23 02:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:29:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-23 02:29:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-23 02:29:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:29:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:29:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:29:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-23 02:29:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-23 02:29:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-23 02:29:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-23 02:29:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-23 02:29:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-23 02:29:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-23 02:29:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-23 02:29:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-23 02:29:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-23 02:29:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:29:03,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:29:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:29:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:29:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:29:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-23 02:29:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-23 02:29:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-23 02:29:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-23 02:29:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:29:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-23 02:29:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-23 02:29:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-23 02:29:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-23 02:29:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:29:03,591 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:29:03,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:29:05,023 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:29:05,212 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:29:05,212 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 02:29:05,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:05 BoogieIcfgContainer [2021-11-23 02:29:05,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:29:05,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:29:05,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:29:05,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:29:05,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:28:59" (1/3) ... [2021-11-23 02:29:05,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277b09de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:05, skipping insertion in model container [2021-11-23 02:29:05,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:02" (2/3) ... [2021-11-23 02:29:05,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277b09de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:05, skipping insertion in model container [2021-11-23 02:29:05,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:05" (3/3) ... [2021-11-23 02:29:05,231 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2021-11-23 02:29:05,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:29:05,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:29:05,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:29:05,330 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:29:05,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:29:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 88 states have internal predecessors, (106), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-23 02:29:05,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 02:29:05,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:05,375 INFO L514 BasicCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:05,377 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:05,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1748352250, now seen corresponding path program 1 times [2021-11-23 02:29:05,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:05,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565579761] [2021-11-23 02:29:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:05,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-23 02:29:06,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:06,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565579761] [2021-11-23 02:29:06,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565579761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:06,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:06,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:29:06,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956610947] [2021-11-23 02:29:06,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:06,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:29:06,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:29:06,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:29:06,274 INFO L87 Difference]: Start difference. First operand has 156 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 88 states have internal predecessors, (106), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-23 02:29:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:06,852 INFO L93 Difference]: Finished difference Result 282 states and 389 transitions. [2021-11-23 02:29:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:29:06,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 93 [2021-11-23 02:29:06,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:06,867 INFO L225 Difference]: With dead ends: 282 [2021-11-23 02:29:06,867 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 02:29:06,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:29:06,876 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 31 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:06,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 634 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:29:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 02:29:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-23 02:29:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 86 states have (on average 1.1744186046511629) internal successors, (101), 87 states have internal predecessors, (101), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-23 02:29:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2021-11-23 02:29:06,982 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 93 [2021-11-23 02:29:06,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:06,984 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2021-11-23 02:29:06,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-23 02:29:06,986 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2021-11-23 02:29:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 02:29:07,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:07,001 INFO L514 BasicCegarLoop]: trace histogram [7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:07,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:29:07,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1956707432, now seen corresponding path program 1 times [2021-11-23 02:29:07,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:07,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442643965] [2021-11-23 02:29:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:07,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-23 02:29:07,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:07,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442643965] [2021-11-23 02:29:07,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442643965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:29:07,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119907927] [2021-11-23 02:29:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:07,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:07,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:07,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:29:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:07,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:29:07,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 02:29:08,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:29:08,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119907927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:08,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:29:08,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-11-23 02:29:08,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304414526] [2021-11-23 02:29:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:08,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:29:08,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:29:08,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:29:08,405 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-23 02:29:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:09,276 INFO L93 Difference]: Finished difference Result 289 states and 384 transitions. [2021-11-23 02:29:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:29:09,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 101 [2021-11-23 02:29:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:09,287 INFO L225 Difference]: With dead ends: 289 [2021-11-23 02:29:09,287 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 02:29:09,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:29:09,292 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 48 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:09,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 917 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:29:09,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 02:29:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-23 02:29:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 89 states have internal predecessors, (102), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2021-11-23 02:29:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 207 transitions. [2021-11-23 02:29:09,334 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 207 transitions. Word has length 101 [2021-11-23 02:29:09,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:09,335 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 207 transitions. [2021-11-23 02:29:09,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-23 02:29:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 207 transitions. [2021-11-23 02:29:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 02:29:09,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:09,338 INFO L514 BasicCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:09,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:09,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:09,563 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:09,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:09,564 INFO L85 PathProgramCache]: Analyzing trace with hash -465372556, now seen corresponding path program 1 times [2021-11-23 02:29:09,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:09,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512847502] [2021-11-23 02:29:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:09,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:09,723 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:29:09,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853120749] [2021-11-23 02:29:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:09,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:09,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:09,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:09,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:29:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:10,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:29:10,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 02:29:10,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:29:10,638 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:10,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512847502] [2021-11-23 02:29:10,641 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:29:10,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853120749] [2021-11-23 02:29:10,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853120749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:10,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:10,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:29:10,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757506927] [2021-11-23 02:29:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:10,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:29:10,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:10,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:29:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:29:10,659 INFO L87 Difference]: Start difference. First operand 156 states and 207 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-23 02:29:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:11,328 INFO L93 Difference]: Finished difference Result 283 states and 377 transitions. [2021-11-23 02:29:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:29:11,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 110 [2021-11-23 02:29:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:11,342 INFO L225 Difference]: With dead ends: 283 [2021-11-23 02:29:11,342 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 02:29:11,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:29:11,351 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 41 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:11,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 783 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 02:29:11,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 02:29:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-23 02:29:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 87 states have (on average 1.160919540229885) internal successors, (101), 89 states have internal predecessors, (101), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2021-11-23 02:29:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 206 transitions. [2021-11-23 02:29:11,399 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 206 transitions. Word has length 110 [2021-11-23 02:29:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:11,403 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 206 transitions. [2021-11-23 02:29:11,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-23 02:29:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 206 transitions. [2021-11-23 02:29:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 02:29:11,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:11,417 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:11,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:11,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:11,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash -872142352, now seen corresponding path program 1 times [2021-11-23 02:29:11,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736240064] [2021-11-23 02:29:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:11,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:11,716 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:29:11,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379632545] [2021-11-23 02:29:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:11,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:11,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:11,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:11,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:29:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:12,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:29:12,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-23 02:29:12,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:29:12,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:12,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736240064] [2021-11-23 02:29:12,712 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:29:12,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379632545] [2021-11-23 02:29:12,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379632545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:12,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:12,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:29:12,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016408528] [2021-11-23 02:29:12,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:12,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:29:12,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:29:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:29:12,715 INFO L87 Difference]: Start difference. First operand 156 states and 206 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-23 02:29:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:13,447 INFO L93 Difference]: Finished difference Result 288 states and 382 transitions. [2021-11-23 02:29:13,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:29:13,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 118 [2021-11-23 02:29:13,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:13,451 INFO L225 Difference]: With dead ends: 288 [2021-11-23 02:29:13,452 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 02:29:13,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:29:13,455 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 55 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:13,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 1054 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 02:29:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 02:29:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-23 02:29:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 87 states have (on average 1.160919540229885) internal successors, (101), 89 states have internal predecessors, (101), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2021-11-23 02:29:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2021-11-23 02:29:13,478 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 118 [2021-11-23 02:29:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:13,479 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2021-11-23 02:29:13,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-23 02:29:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2021-11-23 02:29:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-23 02:29:13,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:13,483 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:13,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:13,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:13,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:13,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:13,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1823335886, now seen corresponding path program 2 times [2021-11-23 02:29:13,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:13,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119392867] [2021-11-23 02:29:13,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:13,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:13,768 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:29:13,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655820487] [2021-11-23 02:29:13,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:29:13,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:13,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:13,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:29:14,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 02:29:14,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:29:14,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:29:14,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:29:14,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:29:14,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119392867] [2021-11-23 02:29:14,602 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:29:14,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655820487] [2021-11-23 02:29:14,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655820487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:14,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:14,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:29:14,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216912701] [2021-11-23 02:29:14,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:14,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:29:14,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:29:14,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:29:14,607 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 5 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:29:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:15,111 INFO L93 Difference]: Finished difference Result 262 states and 348 transitions. [2021-11-23 02:29:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:29:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 127 [2021-11-23 02:29:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:15,121 INFO L225 Difference]: With dead ends: 262 [2021-11-23 02:29:15,121 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 02:29:15,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:29:15,124 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:15,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 673 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:29:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 02:29:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-23 02:29:15,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 87 states have (on average 1.160919540229885) internal successors, (101), 89 states have internal predecessors, (101), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2021-11-23 02:29:15,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 204 transitions. [2021-11-23 02:29:15,172 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 204 transitions. Word has length 127 [2021-11-23 02:29:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:15,174 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 204 transitions. [2021-11-23 02:29:15,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:29:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 204 transitions. [2021-11-23 02:29:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-23 02:29:15,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:15,177 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:15,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:15,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:15,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:15,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1101816282, now seen corresponding path program 3 times [2021-11-23 02:29:15,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:15,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466292048] [2021-11-23 02:29:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:15,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:15,460 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:29:15,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142233511] [2021-11-23 02:29:15,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 02:29:15,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:15,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:15,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:29:16,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 02:29:16,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:29:16,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2702 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:29:16,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 02:29:16,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:29:16,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:16,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466292048] [2021-11-23 02:29:16,483 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:29:16,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142233511] [2021-11-23 02:29:16,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142233511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:16,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:16,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:29:16,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891410718] [2021-11-23 02:29:16,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:16,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:29:16,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:29:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:29:16,488 INFO L87 Difference]: Start difference. First operand 156 states and 204 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:29:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:17,174 INFO L93 Difference]: Finished difference Result 271 states and 358 transitions. [2021-11-23 02:29:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:29:17,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 136 [2021-11-23 02:29:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:17,178 INFO L225 Difference]: With dead ends: 271 [2021-11-23 02:29:17,178 INFO L226 Difference]: Without dead ends: 166 [2021-11-23 02:29:17,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:29:17,180 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 39 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:17,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 1079 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 02:29:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-23 02:29:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-23 02:29:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 93 states have internal predecessors, (105), 55 states have call successors, (55), 18 states have call predecessors, (55), 19 states have return successors, (58), 54 states have call predecessors, (58), 54 states have call successors, (58) [2021-11-23 02:29:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2021-11-23 02:29:17,199 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 136 [2021-11-23 02:29:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:17,201 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2021-11-23 02:29:17,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:29:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2021-11-23 02:29:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 02:29:17,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:17,204 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:17,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:17,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:17,421 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1018112460, now seen corresponding path program 1 times [2021-11-23 02:29:17,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:17,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882897878] [2021-11-23 02:29:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:17,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:17,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:29:17,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253358328] [2021-11-23 02:29:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:17,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:29:17,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:17,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:29:17,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c738d29c-896d-41c1-bf6b-4e107eb8fc3a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:29:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:18,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 2812 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-23 02:29:18,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:29:23,984 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:29:23,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 94 treesize of output 74 [2021-11-23 02:29:24,000 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:29:24,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 68 treesize of output 48 [2021-11-23 02:29:24,009 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:29:24,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 22 [2021-11-23 02:29:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 82 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-23 02:29:24,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:29:25,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:25,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882897878] [2021-11-23 02:29:25,660 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:29:25,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253358328] [2021-11-23 02:29:25,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253358328] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:29:25,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [456328256] [2021-11-23 02:29:25,697 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2021-11-23 02:29:25,697 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:29:25,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:29:25,712 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:29:25,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:29:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:29:30,497 INFO L244 Elim1Store]: Index analysis took 576 ms [2021-11-23 02:29:53,272 WARN L227 SmtUtils]: Spent 22.66s on a formula simplification. DAG size of input: 1767 DAG size of output: 1175 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:29:53,279 INFO L354 Elim1Store]: treesize reduction 1968, result has 47.2 percent of original size [2021-11-23 02:29:53,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19308 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 196 case distinctions, treesize of input 992 treesize of output 2358 [2021-11-23 02:29:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:29:57,865 INFO L244 Elim1Store]: Index analysis took 1126 ms [2021-11-23 02:30:38,230 WARN L227 SmtUtils]: Spent 40.29s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:30:38,236 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-23 02:30:38,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19505 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 392 case distinctions, treesize of input 1002 treesize of output 2377 [2021-11-23 02:30:40,737 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-23 02:30:40,901 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-23 02:30:41,182 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-23 02:30:42,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 55 treesize of output 54 [2021-11-23 02:30:42,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 50 [2021-11-23 02:30:42,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:42,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 301 [2021-11-23 02:30:42,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:42,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 301 [2021-11-23 02:30:44,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 39 [2021-11-23 02:30:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:44,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:44,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 39 [2021-11-23 02:30:44,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:44,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:45,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:45,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:45,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 39 [2021-11-23 02:30:46,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:46,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 39 [2021-11-23 02:30:46,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 867 treesize of output 857 [2021-11-23 02:30:46,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 857 treesize of output 836 [2021-11-23 02:30:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:46,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 836 treesize of output 826 [2021-11-23 02:30:46,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2021-11-23 02:30:47,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2021-11-23 02:30:47,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:47,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:48,067 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:48,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:48,178 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:48,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 33 [2021-11-23 02:30:48,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:48,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:49,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:49,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 844 treesize of output 816 [2021-11-23 02:30:50,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 816 treesize of output 792 [2021-11-23 02:30:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:50,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 792 treesize of output 764 [2021-11-23 02:30:52,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 844 treesize of output 816 [2021-11-23 02:30:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 816 treesize of output 792 [2021-11-23 02:30:52,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:52,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 792 treesize of output 764 [2021-11-23 02:30:52,799 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 02:30:52,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-23 02:30:52,864 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 02:30:52,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2021-11-23 02:30:53,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:30:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:30:53,144 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 29 [2021-11-23 02:30:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,196 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:53,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:53,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:30:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:30:53,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 29 [2021-11-23 02:30:53,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:53,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:53,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:53,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:53,897 INFO L354 Elim1Store]: treesize reduction 82, result has 16.3 percent of original size [2021-11-23 02:30:53,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 134 treesize of output 137 [2021-11-23 02:30:54,054 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-23 02:30:54,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 136 treesize of output 143 [2021-11-23 02:30:54,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,409 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 13 [2021-11-23 02:30:54,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,788 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,866 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 13 [2021-11-23 02:30:54,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,931 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:30:54,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 10 [2021-11-23 02:30:55,351 INFO L354 Elim1Store]: treesize reduction 120, result has 23.6 percent of original size [2021-11-23 02:30:55,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 224 treesize of output 241 [2021-11-23 02:30:55,462 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 02:30:55,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 234 treesize of output 237 [2021-11-23 02:30:55,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:55,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:30:55,845 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-23 02:30:55,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 24 [2021-11-23 02:30:55,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 02:30:56,166 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-23 02:30:56,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 24 [2021-11-23 02:30:56,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 02:30:59,412 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-23 02:30:59,667 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-23 02:30:59,810 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_length with input of size 116 for LOIs [2021-11-23 02:31:12,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:16,051 INFO L354 Elim1Store]: treesize reduction 136, result has 82.8 percent of original size [2021-11-23 02:31:16,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 2901 treesize of output 2895 [2021-11-23 02:31:16,318 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:31:16,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2895 treesize of output 2955 [2021-11-23 02:31:16,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:31:16,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2955 treesize of output 3015 [2021-11-23 02:31:16,789 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:31:16,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3015 treesize of output 3019 [2021-11-23 02:34:00,401 WARN L227 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 644 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:35:52,118 WARN L227 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 643 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)