./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5b917a1c951859368fb2463a158063964361d86aeab261c924186dc34055576d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:57:20,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:57:20,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:57:20,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:57:20,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:57:20,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:57:20,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:57:20,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:57:20,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:57:20,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:57:20,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:57:20,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:57:20,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:57:20,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:57:20,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:57:20,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:57:20,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:57:21,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:57:21,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:57:21,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:57:21,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:57:21,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:57:21,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:57:21,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:57:21,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:57:21,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:57:21,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:57:21,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:57:21,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:57:21,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:57:21,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:57:21,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:57:21,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:57:21,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:57:21,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:57:21,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:57:21,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:57:21,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:57:21,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:57:21,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:57:21,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:57:21,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:57:21,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:57:21,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:57:21,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:57:21,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:57:21,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:57:21,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:57:21,045 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:57:21,045 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:57:21,045 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:57:21,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:57:21,046 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:57:21,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:57:21,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:57:21,046 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:57:21,046 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:57:21,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:57:21,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:57:21,047 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:57:21,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:57:21,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:57:21,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:57:21,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:57:21,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:57:21,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:57:21,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:57:21,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:57:21,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:57:21,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:57:21,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:57:21,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:21,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:57:21,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:57:21,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:57:21,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b917a1c951859368fb2463a158063964361d86aeab261c924186dc34055576d [2022-12-14 06:57:21,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:57:21,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:57:21,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:57:21,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:57:21,241 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:57:21,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i [2022-12-14 06:57:23,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:57:24,163 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:57:24,163 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i [2022-12-14 06:57:24,180 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/data/d0896b258/31ca630b4315455d842406a9418bc474/FLAG0a0747e8f [2022-12-14 06:57:24,192 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/data/d0896b258/31ca630b4315455d842406a9418bc474 [2022-12-14 06:57:24,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:57:24,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:57:24,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:24,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:57:24,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:57:24,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf594f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24, skipping insertion in model container [2022-12-14 06:57:24,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:57:24,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:57:24,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i[4494,4507] [2022-12-14 06:57:24,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i[4554,4567] [2022-12-14 06:57:25,040 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:57:25,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,057 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,057 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,059 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,059 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,061 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,061 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,062 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,062 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,106 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,106 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,107 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,110 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:57:25,112 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:57:25,112 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:57:25,289 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:57:25,290 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:57:25,291 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:57:25,292 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:57:25,293 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:57:25,294 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:57:25,294 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:57:25,295 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:57:25,295 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:57:25,296 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:57:25,296 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:57:25,403 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:57:25,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:25,441 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:57:25,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i[4494,4507] [2022-12-14 06:57:25,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/sv-benchmarks/c/aws-c-common/aws_linked_list_init_harness.i[4554,4567] [2022-12-14 06:57:25,495 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:57:25,498 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,499 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,499 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,508 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,509 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,510 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,510 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,511 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,512 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,513 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,513 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:57:25,521 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,521 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,522 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:57:25,525 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:57:25,527 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:57:25,527 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:57:25,552 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:57:25,553 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:57:25,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:57:25,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:57:25,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:57:25,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:57:25,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:57:25,559 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:57:25,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:57:25,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:57:25,561 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:57:25,585 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:57:25,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:25,805 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:57:25,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25 WrapperNode [2022-12-14 06:57:25,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:25,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:25,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:57:25,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:57:25,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,883 INFO L138 Inliner]: procedures = 679, calls = 1035, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 92 [2022-12-14 06:57:25,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:25,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:57:25,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:57:25,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:57:25,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:57:25,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:57:25,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:57:25,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:57:25,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (1/1) ... [2022-12-14 06:57:25,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:25,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:25,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:57:25,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2022-12-14 06:57:25,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:57:25,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-12-14 06:57:25,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-12-14 06:57:25,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-12-14 06:57:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:57:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-12-14 06:57:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:57:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:57:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:57:26,169 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:57:26,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:57:26,346 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:57:26,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:57:26,435 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:57:26,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:26 BoogieIcfgContainer [2022-12-14 06:57:26,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:57:26,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:57:26,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:57:26,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:57:26,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:57:24" (1/3) ... [2022-12-14 06:57:26,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdc2154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:26, skipping insertion in model container [2022-12-14 06:57:26,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:25" (2/3) ... [2022-12-14 06:57:26,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdc2154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:26, skipping insertion in model container [2022-12-14 06:57:26,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:26" (3/3) ... [2022-12-14 06:57:26,446 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_init_harness.i [2022-12-14 06:57:26,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:57:26,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:57:26,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:57:26,518 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fa976c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:57:26,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:57:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 06:57:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:57:26,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:26,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:26,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:26,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2020375399, now seen corresponding path program 1 times [2022-12-14 06:57:26,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:26,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558462984] [2022-12-14 06:57:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:28,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:28,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558462984] [2022-12-14 06:57:28,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558462984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:28,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:28,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:57:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180534922] [2022-12-14 06:57:28,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:57:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:57:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:57:28,195 INFO L87 Difference]: Start difference. First operand has 41 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:57:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:28,411 INFO L93 Difference]: Finished difference Result 78 states and 98 transitions. [2022-12-14 06:57:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:57:28,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-12-14 06:57:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:28,419 INFO L225 Difference]: With dead ends: 78 [2022-12-14 06:57:28,420 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 06:57:28,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:57:28,425 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:28,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 179 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:28,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 06:57:28,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 06:57:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 25 states have internal predecessors, (29), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 06:57:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2022-12-14 06:57:28,459 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 16 [2022-12-14 06:57:28,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:28,460 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2022-12-14 06:57:28,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:57:28,460 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-12-14 06:57:28,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 06:57:28,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:28,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:28,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:57:28,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:28,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:28,463 INFO L85 PathProgramCache]: Analyzing trace with hash 538116661, now seen corresponding path program 1 times [2022-12-14 06:57:28,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:28,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052538535] [2022-12-14 06:57:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:28,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:28,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052538535] [2022-12-14 06:57:28,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052538535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:28,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:28,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:57:28,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716153418] [2022-12-14 06:57:28,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:57:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:57:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:57:28,567 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:28,686 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-12-14 06:57:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:57:28,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-12-14 06:57:28,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:28,687 INFO L225 Difference]: With dead ends: 79 [2022-12-14 06:57:28,687 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 06:57:28,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:57:28,689 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:28,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 160 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 06:57:28,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 06:57:28,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 06:57:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-12-14 06:57:28,699 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 18 [2022-12-14 06:57:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:28,699 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-12-14 06:57:28,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-12-14 06:57:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:57:28,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:28,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:28,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:57:28,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1170184183, now seen corresponding path program 1 times [2022-12-14 06:57:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:28,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689094745] [2022-12-14 06:57:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:28,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:28,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:28,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689094745] [2022-12-14 06:57:28,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689094745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:28,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:28,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:57:28,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884753928] [2022-12-14 06:57:28,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:28,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:57:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:57:28,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:57:28,816 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:28,978 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2022-12-14 06:57:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:57:28,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-12-14 06:57:28,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:28,979 INFO L225 Difference]: With dead ends: 88 [2022-12-14 06:57:28,980 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 06:57:28,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:57:28,981 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 61 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:28,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 170 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 06:57:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-12-14 06:57:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 06:57:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-12-14 06:57:28,990 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 20 [2022-12-14 06:57:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:28,990 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-12-14 06:57:28,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-12-14 06:57:28,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 06:57:28,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:28,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:28,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:57:28,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:28,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:28,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1925302219, now seen corresponding path program 1 times [2022-12-14 06:57:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:28,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321325061] [2022-12-14 06:57:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:29,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:29,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321325061] [2022-12-14 06:57:29,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321325061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:29,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:29,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:57:29,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797586147] [2022-12-14 06:57:29,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:29,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:57:29,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:29,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:57:29,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:57:29,150 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:29,340 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2022-12-14 06:57:29,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:57:29,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-12-14 06:57:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:29,342 INFO L225 Difference]: With dead ends: 88 [2022-12-14 06:57:29,342 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 06:57:29,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:57:29,343 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 54 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:29,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 170 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 06:57:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-12-14 06:57:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 06:57:29,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-12-14 06:57:29,350 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 21 [2022-12-14 06:57:29,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:29,351 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-12-14 06:57:29,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:57:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-12-14 06:57:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:57:29,351 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:29,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:29,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:57:29,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1961749134, now seen corresponding path program 1 times [2022-12-14 06:57:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:29,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981933545] [2022-12-14 06:57:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:30,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981933545] [2022-12-14 06:57:30,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981933545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:30,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:30,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:57:30,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440396720] [2022-12-14 06:57:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:30,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:57:30,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:30,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:57:30,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:57:30,098 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:57:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:30,447 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2022-12-14 06:57:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:57:30,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2022-12-14 06:57:30,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:30,448 INFO L225 Difference]: With dead ends: 85 [2022-12-14 06:57:30,448 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 06:57:30,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:57:30,449 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:30,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 199 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:57:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 06:57:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-12-14 06:57:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 29 states have internal predecessors, (33), 11 states have call successors, (11), 6 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-14 06:57:30,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-12-14 06:57:30,456 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 24 [2022-12-14 06:57:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:30,456 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-12-14 06:57:30,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:57:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-14 06:57:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 06:57:30,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:30,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:30,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:57:30,458 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash -314126348, now seen corresponding path program 1 times [2022-12-14 06:57:30,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:30,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554285127] [2022-12-14 06:57:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:30,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:30,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:30,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554285127] [2022-12-14 06:57:30,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554285127] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:57:30,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128242697] [2022-12-14 06:57:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:30,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:57:30,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:30,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:57:30,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:57:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:30,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 06:57:30,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:57:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:33,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:57:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:33,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128242697] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:57:33,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1831336916] [2022-12-14 06:57:33,762 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 06:57:33,763 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:57:33,766 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:57:33,771 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:57:33,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:57:33,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:33,856 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-14 06:57:33,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 50 [2022-12-14 06:57:33,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:33,903 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 06:57:33,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 06:57:33,925 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_init with input of size 113 for LOIs [2022-12-14 06:57:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:57:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:57:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:57:34,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:57:34,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:57:34,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:57:34,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:57:34,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:57:34,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:57:34,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:57:34,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:57:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:57:34,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:57:34,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:57:34,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:57:34,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:34,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:57:34,900 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 131 for LOIs [2022-12-14 06:57:34,957 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 133 for LOIs [2022-12-14 06:57:35,618 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-12-14 06:57:35,638 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 20 for LOIs [2022-12-14 06:57:35,697 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:57:41,442 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1202#(and (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 16))) (= (select |#length| 3) 12) (<= 0 |__VERIFIER_assert_#in~cond|) (= 0 (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 32))) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= 31 (select |#length| 2)) (= |#funAddr~s_can_fail_malloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) |~#s_can_fail_allocator_static~0.offset|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 8)) |#funAddr~s_can_fail_free_allocator.offset|) (= (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 32)) 0) (<= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((|v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| Int)) (and (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 8) 0) (= 32 (select |#length| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|)) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 8) 0) (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 24)) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 0) 16) (not (= (mod (ite (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| 0) 0 1) 256) 0)) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| 4)) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| 0)) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 16) 0) (<= 0 |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 24) 0) (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 0)) (= (select |#valid| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 1) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) 16) 0) (< |#StackHeapBarrier| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5|) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| 2)) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_5| 3)))) (= (select |#valid| 4) 1) (= |#funAddr~s_can_fail_calloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 24))) (= (select |#valid| 1) 1) (= |#funAddr~s_can_fail_realloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 16))) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 24))) (= (select |#valid| 0) 0) (= (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 8)) |#funAddr~s_can_fail_free_allocator.base|) (= ~tl_last_error~0 0) (= |#funAddr~s_can_fail_malloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) |~#s_can_fail_allocator_static~0.offset|)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select (select |#memory_int| 1) 0) 48) (= 40 (select |#length| 4)) (= (select (select |#memory_int| 1) 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:57:41,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:57:41,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:57:41,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 6] total 22 [2022-12-14 06:57:41,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28907700] [2022-12-14 06:57:41,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:57:41,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 06:57:41,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 06:57:41,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 06:57:41,445 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 22 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 9 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 06:57:44,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:44,129 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2022-12-14 06:57:44,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 06:57:44,130 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 9 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 26 [2022-12-14 06:57:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:44,131 INFO L225 Difference]: With dead ends: 102 [2022-12-14 06:57:44,131 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 06:57:44,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=251, Invalid=2199, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 06:57:44,132 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 161 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:44,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 185 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 06:57:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 06:57:44,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 49. [2022-12-14 06:57:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.206896551724138) internal successors, (35), 31 states have internal predecessors, (35), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-14 06:57:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-12-14 06:57:44,149 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 26 [2022-12-14 06:57:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:44,149 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-12-14 06:57:44,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 9 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 06:57:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-12-14 06:57:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 06:57:44,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:44,150 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 06:57:44,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:57:44,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 06:57:44,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -694288424, now seen corresponding path program 1 times [2022-12-14 06:57:44,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:44,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892342211] [2022-12-14 06:57:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:57:44,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:44,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892342211] [2022-12-14 06:57:44,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892342211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:44,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:44,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:57:44,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482100670] [2022-12-14 06:57:44,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:44,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:57:44,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:44,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:57:44,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:57:44,524 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 06:57:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:44,626 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2022-12-14 06:57:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:57:44,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-14 06:57:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:44,627 INFO L225 Difference]: With dead ends: 61 [2022-12-14 06:57:44,627 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 06:57:44,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:57:44,629 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:44,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 244 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 06:57:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2022-12-14 06:57:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 38 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2022-12-14 06:57:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-12-14 06:57:44,656 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 27 [2022-12-14 06:57:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:44,656 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-12-14 06:57:44,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 06:57:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-12-14 06:57:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:57:44,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:44,658 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 06:57:44,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:57:44,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:44,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash 739444463, now seen corresponding path program 1 times [2022-12-14 06:57:44,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:44,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188746018] [2022-12-14 06:57:44,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:44,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:57:45,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:45,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188746018] [2022-12-14 06:57:45,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188746018] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:57:45,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130409561] [2022-12-14 06:57:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:45,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:57:45,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:45,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:57:45,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:57:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:45,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-14 06:57:45,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:57:45,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 06:57:45,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:45,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 06:58:07,628 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:58:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:58:07,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:58:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:58:08,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130409561] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:58:08,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1179790359] [2022-12-14 06:58:08,043 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-12-14 06:58:08,043 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:58:08,043 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:58:08,043 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:58:08,043 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:58:08,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,080 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-14 06:58:08,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 50 [2022-12-14 06:58:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,117 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 06:58:08,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 06:58:08,132 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_init with input of size 113 for LOIs [2022-12-14 06:58:08,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:58:08,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:58:08,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:58:08,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:58:08,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:58:08,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:58:08,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:58:08,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:58:08,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:58:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:58:08,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:58:08,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:58:08,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:58:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:58:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:58:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:58:08,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:58:08,829 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 130 for LOIs [2022-12-14 06:58:08,901 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 133 for LOIs [2022-12-14 06:58:09,469 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-12-14 06:58:09,483 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 20 for LOIs [2022-12-14 06:58:09,527 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:58:14,353 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1841#(and (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 16))) (= (select |#length| 3) 12) (= 0 (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 32))) (exists ((|v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12| Int)) (and (= 16 (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 0)) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 8) 0) (= (select |#valid| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 1) (= 32 (select |#length| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|)) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 24) |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12| 4)) (not (= (mod (ite (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12| 0) 0 1) 256) 0)) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 0) |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) (not (= 2 |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|)) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 16) 0) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 8) 0) (< |#StackHeapBarrier| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) (not (= |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12| 0)) (not (= 3 |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|)) (= (select (select |#memory_$Pointer$.offset| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 24) 0) (<= 0 |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) (= (select (select |#memory_$Pointer$.base| |v_aws_linked_list_init_#in~list.base_BEFORE_CALL_12|) 16) 0))) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= 31 (select |#length| 2)) (= |#funAddr~s_can_fail_malloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) |~#s_can_fail_allocator_static~0.offset|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 8)) |#funAddr~s_can_fail_free_allocator.offset|) (= (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 32)) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| 0) (= (select |#valid| 4) 1) (= |#funAddr~s_can_fail_calloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 24))) (= (select |#valid| 1) 1) (= |#funAddr~s_can_fail_realloc_allocator.base| (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 16))) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 24))) (= (select |#valid| 0) 0) (= (select (select |#memory_$Pointer$.base| |~#s_can_fail_allocator_static~0.base|) (+ |~#s_can_fail_allocator_static~0.offset| 8)) |#funAddr~s_can_fail_free_allocator.base|) (= ~tl_last_error~0 0) (= |#funAddr~s_can_fail_malloc_allocator.offset| (select (select |#memory_$Pointer$.offset| |~#s_can_fail_allocator_static~0.base|) |~#s_can_fail_allocator_static~0.offset|)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select (select |#memory_int| 1) 0) 48) (= 40 (select |#length| 4)) (= (select (select |#memory_int| 1) 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:58:14,353 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:58:14,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:58:14,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 8] total 25 [2022-12-14 06:58:14,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084122970] [2022-12-14 06:58:14,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:58:14,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 06:58:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 06:58:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1699, Unknown=6, NotChecked=0, Total=1892 [2022-12-14 06:58:14,355 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 25 states, 22 states have (on average 2.090909090909091) internal successors, (46), 23 states have internal predecessors, (46), 12 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-14 06:58:34,579 WARN L233 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 39 DAG size of output: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:58:44,658 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:58:54,718 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:04,796 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:14,896 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:25,183 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:25,331 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2022-12-14 06:59:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:59:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 2.090909090909091) internal successors, (46), 23 states have internal predecessors, (46), 12 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) Word has length 30 [2022-12-14 06:59:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:25,333 INFO L225 Difference]: With dead ends: 119 [2022-12-14 06:59:25,333 INFO L226 Difference]: Without dead ends: 69 [2022-12-14 06:59:25,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 97.8s TimeCoverageRelationStatistics Valid=300, Invalid=2450, Unknown=6, NotChecked=0, Total=2756 [2022-12-14 06:59:25,335 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 138 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:25,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 300 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:59:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-14 06:59:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2022-12-14 06:59:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-14 06:59:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2022-12-14 06:59:25,357 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 30 [2022-12-14 06:59:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:25,357 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2022-12-14 06:59:25,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 2.090909090909091) internal successors, (46), 23 states have internal predecessors, (46), 12 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-14 06:59:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2022-12-14 06:59:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 06:59:25,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:25,358 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 06:59:25,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:59:25,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:59:25,560 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:59:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:25,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1842443058, now seen corresponding path program 1 times [2022-12-14 06:59:25,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:25,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71296238] [2022-12-14 06:59:25,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:25,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:59:26,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:26,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71296238] [2022-12-14 06:59:26,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71296238] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:59:26,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107719390] [2022-12-14 06:59:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:26,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:59:26,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:59:26,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:59:26,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:59:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:26,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-14 06:59:26,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:59:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:59:26,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:59:39,178 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:49,361 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:59:49,618 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:59:49,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 06:59:49,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:59:49,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 06:59:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:59:49,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107719390] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:59:49,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [924361973] [2022-12-14 06:59:49,673 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-12-14 06:59:49,673 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:59:49,674 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:59:49,674 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:59:49,674 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:59:49,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,718 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 06:59:49,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 06:59:49,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-12-14 06:59:49,745 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_init with input of size 113 for LOIs [2022-12-14 06:59:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:59:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:59:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:59:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:49,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:59:50,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:59:50,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:59:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:59:50,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:59:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:59:50,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:59:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:59:50,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:59:50,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:59:50,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:59:50,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:59:50,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:59:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:59:50,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:59:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:59:50,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:59:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:59:50,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:59:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:50,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 06:59:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 06:59:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 06:59:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 06:59:51,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:59:51,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:59:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:51,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:51,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 06:59:51,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 06:59:51,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:51,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:59:51,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 06:59:51,221 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_empty with input of size 133 for LOIs [2022-12-14 06:59:51,344 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2022-12-14 06:59:51,621 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 128 for LOIs [2022-12-14 06:59:52,286 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 162 for LOIs [2022-12-14 06:59:52,343 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 20 for LOIs [2022-12-14 06:59:52,393 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:00:03,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [924361973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:03,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:00:03,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [16, 22, 18] total 65 [2022-12-14 07:00:03,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812018881] [2022-12-14 07:00:03,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:03,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 07:00:03,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:03,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 07:00:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=3863, Unknown=1, NotChecked=0, Total=4160 [2022-12-14 07:00:03,136 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 16 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 07:00:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:08,090 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2022-12-14 07:00:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 07:00:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 16 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2022-12-14 07:00:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:08,091 INFO L225 Difference]: With dead ends: 88 [2022-12-14 07:00:08,091 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 07:00:08,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 62 SyntacticMatches, 9 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=404, Invalid=4565, Unknown=1, NotChecked=0, Total=4970 [2022-12-14 07:00:08,092 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 60 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:08,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 117 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:00:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 07:00:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2022-12-14 07:00:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:00:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-12-14 07:00:08,123 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 40 [2022-12-14 07:00:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:08,123 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-12-14 07:00:08,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 16 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 07:00:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-12-14 07:00:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:00:08,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:08,124 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 07:00:08,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:00:08,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:00:08,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:08,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1511104578, now seen corresponding path program 1 times [2022-12-14 07:00:08,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:08,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462029555] [2022-12-14 07:00:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 07:00:09,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:09,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462029555] [2022-12-14 07:00:09,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462029555] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:00:09,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687286225] [2022-12-14 07:00:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:09,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:00:09,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:00:09,559 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:00:09,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:00:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:09,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-14 07:00:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:00:09,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 07:00:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:09,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 07:00:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:00:24,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:00:29,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:00:29,583 INFO L350 Elim1Store]: Elim1 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 37542 treesize of output 36734 [2022-12-14 07:00:30,897 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:00:30,898 INFO L350 Elim1Store]: Elim1 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 21371 treesize of output 21301 [2022-12-14 07:02:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 07:02:50,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687286225] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:02:50,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262365381] [2022-12-14 07:02:50,573 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 07:02:50,573 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:02:50,573 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:02:50,574 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:02:50,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:02:50,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,613 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 07:02:50,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 07:02:50,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-12-14 07:02:50,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 07:02:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 07:02:50,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2022-12-14 07:02:50,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:50,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2022-12-14 07:02:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2022-12-14 07:02:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2022-12-14 07:02:51,128 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_init with input of size 113 for LOIs [2022-12-14 07:02:51,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 07:02:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 07:02:51,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:51,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 07:02:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 07:02:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 07:02:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 07:02:51,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:51,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:51,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:51,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:51,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 07:02:51,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 07:02:51,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 07:02:51,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:51,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:51,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:51,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:51,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:51,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:51,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:52,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:52,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:52,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 07:02:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:52,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 07:02:52,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 07:02:52,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-12-14 07:02:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-12-14 07:02:52,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 87 [2022-12-14 07:02:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 93 [2022-12-14 07:02:52,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-12-14 07:02:52,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 95 [2022-12-14 07:02:52,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:02:52,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 07:02:52,616 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_empty with input of size 133 for LOIs [2022-12-14 07:02:52,730 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 162 for LOIs [2022-12-14 07:02:52,786 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 158 for LOIs [2022-12-14 07:02:53,976 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 15 for LOIs [2022-12-14 07:02:53,981 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 20 for LOIs [2022-12-14 07:02:54,023 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:03:06,631 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2998#(and (= |~#s_can_fail_allocator_static~0.base| 4) (= (mod __VERIFIER_assert_~cond 256) 0) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= ~tl_last_error~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:03:06,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:03:06,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:03:06,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 13] total 40 [2022-12-14 07:03:06,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165822330] [2022-12-14 07:03:06,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:03:06,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 07:03:06,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:06,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 07:03:06,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=4189, Unknown=2, NotChecked=0, Total=4556 [2022-12-14 07:03:06,636 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 20 states have call successors, (26), 6 states have call predecessors, (26), 11 states have return successors, (25), 15 states have call predecessors, (25), 19 states have call successors, (25) [2022-12-14 07:03:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:11,985 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2022-12-14 07:03:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 07:03:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 20 states have call successors, (26), 6 states have call predecessors, (26), 11 states have return successors, (25), 15 states have call predecessors, (25), 19 states have call successors, (25) Word has length 52 [2022-12-14 07:03:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:11,986 INFO L225 Difference]: With dead ends: 91 [2022-12-14 07:03:11,986 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 07:03:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 90 SyntacticMatches, 15 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2993 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=635, Invalid=6673, Unknown=2, NotChecked=0, Total=7310 [2022-12-14 07:03:11,988 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 214 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:11,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 329 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 07:03:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 07:03:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 67. [2022-12-14 07:03:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:03:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2022-12-14 07:03:12,029 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 52 [2022-12-14 07:03:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:12,029 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2022-12-14 07:03:12,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 20 states have call successors, (26), 6 states have call predecessors, (26), 11 states have return successors, (25), 15 states have call predecessors, (25), 19 states have call successors, (25) [2022-12-14 07:03:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2022-12-14 07:03:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 07:03:12,031 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:12,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 07:03:12,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:03:12,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 07:03:12,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:12,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2062891035, now seen corresponding path program 1 times [2022-12-14 07:03:12,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:12,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544506644] [2022-12-14 07:03:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:12,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 07:03:13,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:13,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544506644] [2022-12-14 07:03:13,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544506644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:03:13,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639749585] [2022-12-14 07:03:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:13,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:13,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f0b6f4-dac0-49ac-a595-8b0a94053293/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:03:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:13,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 124 conjunts are in the unsatisfiable core [2022-12-14 07:03:13,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:13,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 07:03:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:13,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 07:03:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:03:23,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:03:32,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10434 treesize of output 10402 [2022-12-14 07:03:32,700 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:03:32,702 INFO L350 Elim1Store]: Elim1 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 20863618 treesize of output 20699570