./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF --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 bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:50:10,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:50:10,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:50:10,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:50:10,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:50:10,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:50:10,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:50:10,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:50:10,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:50:10,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:50:10,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:50:10,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:50:10,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:50:10,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:50:10,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:50:10,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:50:10,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:50:10,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:50:10,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:50:10,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:50:10,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:50:10,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:50:10,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:50:10,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:50:10,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:50:10,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:50:10,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:50:10,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:50:10,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:50:10,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:50:10,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:50:10,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:50:10,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:50:10,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:50:10,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:50:10,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:50:10,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:50:10,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:50:10,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:50:10,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:50:10,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:50:10,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:50:10,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:50:10,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:50:10,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:50:10,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:50:10,445 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:50:10,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:50:10,446 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:50:10,446 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:50:10,447 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:50:10,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:50:10,447 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:50:10,448 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:50:10,448 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:50:10,449 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:50:10,449 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:50:10,449 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:50:10,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:50:10,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:50:10,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:50:10,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:50:10,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:50:10,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:50:10,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:50:10,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:50:10,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:50:10,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:50:10,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:50:10,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:50:10,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:50:10,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:50:10,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:50:10,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:50:10,456 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:50:10,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:50:10,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:50:10,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:50:10,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:50:10,458 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c [2021-11-12 22:50:10,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:50:10,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:50:10,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:50:10,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:50:10,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:50:10,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-12 22:50:10,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/38765f3ad/fbb63112de8a4b1a988e0c3bdb8fa93c/FLAGdc6310cce [2021-11-12 22:50:12,115 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:50:12,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-12 22:50:12,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/38765f3ad/fbb63112de8a4b1a988e0c3bdb8fa93c/FLAGdc6310cce [2021-11-12 22:50:12,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/38765f3ad/fbb63112de8a4b1a988e0c3bdb8fa93c [2021-11-12 22:50:12,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:50:12,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:50:12,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:50:12,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:50:12,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:50:12,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:50:12" (1/1) ... [2021-11-12 22:50:12,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698df3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:12, skipping insertion in model container [2021-11-12 22:50:12,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:50:12" (1/1) ... [2021-11-12 22:50:12,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:50:12,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:50:13,171 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-12 22:50:13,182 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-12 22:50:13,216 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:50:13,224 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:50:14,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:14,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:15,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:50:15,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:50:15,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:50:15,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:50:15,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:50:15,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:50:15,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:50:15,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:50:15,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:50:15,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:50:15,370 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:50:15,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:15,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:15,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:50:15,643 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:50:15,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ca17e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:15, skipping insertion in model container [2021-11-12 22:50:15,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:50:15,645 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:50:15,648 INFO L158 Benchmark]: Toolchain (without parser) took 3131.05ms. Allocated memory is still 148.9MB. Free memory was 109.9MB in the beginning and 72.3MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-12 22:50:15,649 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:50:15,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3123.32ms. Allocated memory is still 148.9MB. Free memory was 109.6MB in the beginning and 72.3MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-12 22:50:15,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3123.32ms. Allocated memory is still 148.9MB. Free memory was 109.6MB in the beginning and 72.3MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF --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 bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:50:18,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:50:18,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:50:18,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:50:18,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:50:18,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:50:18,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:50:18,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:50:18,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:50:18,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:50:18,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:50:18,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:50:18,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:50:18,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:50:18,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:50:18,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:50:18,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:50:18,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:50:18,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:50:18,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:50:18,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:50:18,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:50:18,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:50:18,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:50:18,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:50:18,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:50:18,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:50:18,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:50:18,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:50:18,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:50:18,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:50:18,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:50:18,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:50:18,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:50:18,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:50:18,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:50:18,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:50:18,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:50:18,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:50:18,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:50:18,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:50:18,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:50:18,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:50:18,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:50:18,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:50:18,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:50:18,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:50:18,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:50:18,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:50:18,777 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:50:18,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:50:18,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:50:18,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:50:18,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:50:18,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:50:18,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:50:18,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:50:18,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:50:18,781 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:50:18,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:50:18,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:50:18,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:50:18,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:50:18,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:50:18,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:50:18,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:50:18,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:50:18,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:50:18,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:50:18,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:50:18,784 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:50:18,785 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:50:18,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:50:18,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:50:18,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:50:18,786 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c [2021-11-12 22:50:19,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:50:19,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:50:19,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:50:19,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:50:19,380 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:50:19,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-12 22:50:19,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/f38eb7be5/410b374625094d06b443dc4d2df53ced/FLAG05e33ff11 [2021-11-12 22:50:20,584 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:50:20,585 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-12 22:50:20,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/f38eb7be5/410b374625094d06b443dc4d2df53ced/FLAG05e33ff11 [2021-11-12 22:50:20,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/data/f38eb7be5/410b374625094d06b443dc4d2df53ced [2021-11-12 22:50:20,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:50:20,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:50:20,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:50:20,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:50:20,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:50:20,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:50:20" (1/1) ... [2021-11-12 22:50:20,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703fbbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:20, skipping insertion in model container [2021-11-12 22:50:20,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:50:20" (1/1) ... [2021-11-12 22:50:20,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:50:21,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:50:21,640 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-12 22:50:21,647 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-12 22:50:21,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:50:21,680 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:50:22,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,836 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:22,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:23,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:50:23,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:50:23,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:50:23,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:50:23,433 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:50:23,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:50:23,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:50:23,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:50:23,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:50:23,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:50:23,732 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:50:23,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:23,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:50:24,116 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:50:24,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:50:24,187 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-12 22:50:24,188 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-12 22:50:24,189 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:50:24,193 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:50:24,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,353 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:50:24,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:50:24,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:50:24,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:50:24,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:50:24,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:50:24,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:50:24,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:50:24,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:50:24,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:50:24,407 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:50:24,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:50:24,673 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:50:24,705 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-12 22:50:24,705 WARN L228 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_7daffbb1-9e58-45dc-9a58-103d20516eed/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-12 22:50:24,707 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:50:24,708 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:50:24,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:24,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:50:24,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:50:24,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:50:24,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:50:24,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:50:24,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:50:24,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:50:24,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:50:24,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:50:24,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:50:24,901 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:50:25,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:25,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:50:25,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:50:25,503 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:50:25,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25 WrapperNode [2021-11-12 22:50:25,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:50:25,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:50:25,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:50:25,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:50:25,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:50:25,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:50:25,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:50:25,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:50:25,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:50:25,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:50:25,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:50:25,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:50:25,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (1/1) ... [2021-11-12 22:50:25,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:50:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:50:26,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:50:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:50:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-12 22:50:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-12 22:50:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:50:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:50:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:50:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:50:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:50:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:50:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:50:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:50:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:50:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:50:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:50:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:50:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:50:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:50:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:50:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:50:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:50:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:50:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:50:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:50:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:50:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:50:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_array [2021-11-12 22:50:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_array [2021-11-12 22:50:43,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:50:43,871 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:50:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:50:43 BoogieIcfgContainer [2021-11-12 22:50:43,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:50:43,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:50:43,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:50:43,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:50:43,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:50:20" (1/3) ... [2021-11-12 22:50:43,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcf319f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:50:43, skipping insertion in model container [2021-11-12 22:50:43,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:50:25" (2/3) ... [2021-11-12 22:50:43,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcf319f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:50:43, skipping insertion in model container [2021-11-12 22:50:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:50:43" (3/3) ... [2021-11-12 22:50:43,885 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_array_harness.i [2021-11-12 22:50:43,892 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:50:43,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:50:43,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:50:43,960 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:50:43,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:50:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 52 states have (on average 1.25) internal successors, (65), 53 states have internal predecessors, (65), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-12 22:50:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 22:50:43,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:43,991 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:50:43,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:43,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:43,998 INFO L85 PathProgramCache]: Analyzing trace with hash -537066619, now seen corresponding path program 1 times [2021-11-12 22:50:44,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:50:44,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466197517] [2021-11-12 22:50:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:44,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:50:44,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:50:44,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:50:44,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:50:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:48,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:50:48,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:50:49,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:50:49,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:50:49,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466197517] [2021-11-12 22:50:49,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466197517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:49,171 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:50:49,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:50:49,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511131852] [2021-11-12 22:50:49,174 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:49,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:50:49,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:50:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:50:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:50:49,216 INFO L87 Difference]: Start difference. First operand has 75 states, 52 states have (on average 1.25) internal successors, (65), 53 states have internal predecessors, (65), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:50:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:49,253 INFO L93 Difference]: Finished difference Result 145 states and 195 transitions. [2021-11-12 22:50:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:50:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2021-11-12 22:50:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:49,267 INFO L225 Difference]: With dead ends: 145 [2021-11-12 22:50:49,267 INFO L226 Difference]: Without dead ends: 68 [2021-11-12 22:50:49,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:50:49,276 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:49,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:50:49,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-12 22:50:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-12 22:50:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 47 states have internal predecessors, (55), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-12 22:50:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2021-11-12 22:50:49,333 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 33 [2021-11-12 22:50:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:49,334 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2021-11-12 22:50:49,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 22:50:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2021-11-12 22:50:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 22:50:49,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:49,338 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:50:49,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:50:49,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:50:49,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:49,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash 365093061, now seen corresponding path program 1 times [2021-11-12 22:50:49,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:50:49,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937738613] [2021-11-12 22:50:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:49,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:50:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:50:49,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:50:49,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:50:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:54,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:50:54,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:50:54,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:50:55,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:50:55,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937738613] [2021-11-12 22:50:55,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937738613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:55,030 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:50:55,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:50:55,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893945452] [2021-11-12 22:50:55,031 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:55,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:50:55,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:50:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:50:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:50:55,035 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:50:57,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:57,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:57,232 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2021-11-12 22:50:57,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:50:57,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2021-11-12 22:50:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:57,237 INFO L225 Difference]: With dead ends: 123 [2021-11-12 22:50:57,237 INFO L226 Difference]: Without dead ends: 71 [2021-11-12 22:50:57,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:50:57,240 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 22 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2129.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2164.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:57,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 227 Invalid, 17 Unknown, 0 Unchecked, 7.19ms Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2164.50ms Time] [2021-11-12 22:50:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-12 22:50:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-12 22:50:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.1875) internal successors, (57), 50 states have internal predecessors, (57), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2021-11-12 22:50:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2021-11-12 22:50:57,257 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 33 [2021-11-12 22:50:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:57,258 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2021-11-12 22:50:57,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:50:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2021-11-12 22:50:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-12 22:50:57,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:57,261 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:50:57,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:50:57,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:50:57,486 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1309209872, now seen corresponding path program 1 times [2021-11-12 22:50:57,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:50:57,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412816204] [2021-11-12 22:50:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:57,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:50:57,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:50:57,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:50:57,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:51:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:02,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:51:02,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:51:02,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:03,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:51:03,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:51:03,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412816204] [2021-11-12 22:51:03,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412816204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:51:03,152 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:51:03,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-12 22:51:03,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104047344] [2021-11-12 22:51:03,153 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:03,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:51:03,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:51:03,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:51:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:51:03,162 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:51:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:03,553 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2021-11-12 22:51:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:51:03,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2021-11-12 22:51:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:03,556 INFO L225 Difference]: With dead ends: 83 [2021-11-12 22:51:03,557 INFO L226 Difference]: Without dead ends: 81 [2021-11-12 22:51:03,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:51:03,558 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 23 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 232.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.29ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 276.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:03,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 703 Invalid, 69 Unknown, 0 Unchecked, 9.29ms Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 276.55ms Time] [2021-11-12 22:51:03,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-12 22:51:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-11-12 22:51:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 57 states have internal predecessors, (63), 16 states have call successors, (16), 7 states have call predecessors, (16), 9 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2021-11-12 22:51:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 97 transitions. [2021-11-12 22:51:03,589 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 97 transitions. Word has length 39 [2021-11-12 22:51:03,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:03,590 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 97 transitions. [2021-11-12 22:51:03,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:51:03,590 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2021-11-12 22:51:03,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:51:03,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:03,595 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:51:03,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:03,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:51:03,810 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:51:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash -853000232, now seen corresponding path program 1 times [2021-11-12 22:51:03,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:51:03,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621493665] [2021-11-12 22:51:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:03,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:51:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:51:03,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:51:03,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:51:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:08,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:51:08,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:51:09,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:51:10,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:51:10,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621493665] [2021-11-12 22:51:10,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621493665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:51:10,092 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:51:10,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:51:10,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181125216] [2021-11-12 22:51:10,093 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:10,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:51:10,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:51:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:51:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:51:10,095 INFO L87 Difference]: Start difference. First operand 80 states and 97 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:51:12,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:14,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:16,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:18,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:19,478 INFO L93 Difference]: Finished difference Result 157 states and 195 transitions. [2021-11-12 22:51:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:51:19,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-11-12 22:51:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:19,483 INFO L225 Difference]: With dead ends: 157 [2021-11-12 22:51:19,483 INFO L226 Difference]: Without dead ends: 98 [2021-11-12 22:51:19,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:51:19,486 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 43 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8977.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 9171.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:19,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 413 Invalid, 93 Unknown, 0 Unchecked, 4.66ms Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 4 Unknown, 25 Unchecked, 9171.56ms Time] [2021-11-12 22:51:19,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-12 22:51:19,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2021-11-12 22:51:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 62 states have internal predecessors, (70), 16 states have call successors, (16), 7 states have call predecessors, (16), 9 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2021-11-12 22:51:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 104 transitions. [2021-11-12 22:51:19,501 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 104 transitions. Word has length 43 [2021-11-12 22:51:19,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:19,502 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 104 transitions. [2021-11-12 22:51:19,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:51:19,503 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2021-11-12 22:51:19,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:51:19,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:19,505 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:51:19,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:19,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:51:19,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:51:19,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:19,716 INFO L85 PathProgramCache]: Analyzing trace with hash -594834794, now seen corresponding path program 1 times [2021-11-12 22:51:19,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:51:19,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511522290] [2021-11-12 22:51:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:19,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:51:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:51:19,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:51:19,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:51:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:41,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:51:41,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:42,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:51:42,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 165 [2021-11-12 22:51:55,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:51:55,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:03,985 WARN L227 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 719 DAG size of output: 92 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:52:03,987 INFO L354 Elim1Store]: treesize reduction 8872, result has 1.9 percent of original size [2021-11-12 22:52:03,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 181 treesize of output 241 [2021-11-12 22:52:04,036 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-12 22:52:04,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 241 treesize of output 99 [2021-11-12 22:52:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:52:04,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:04,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511522290] [2021-11-12 22:52:04,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511522290] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:52:04,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:52:04,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2021-11-12 22:52:04,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519786114] [2021-11-12 22:52:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:04,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:52:04,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:52:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:52:04,557 INFO L87 Difference]: Start difference. First operand 85 states and 104 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:52:06,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:08,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:10,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:12,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:14,699 INFO L93 Difference]: Finished difference Result 172 states and 215 transitions. [2021-11-12 22:52:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:52:14,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2021-11-12 22:52:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:14,706 INFO L225 Difference]: With dead ends: 172 [2021-11-12 22:52:14,706 INFO L226 Difference]: Without dead ends: 103 [2021-11-12 22:52:14,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:52:14,709 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 76 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9370.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.99ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9636.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:14,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 331 Invalid, 87 Unknown, 0 Unchecked, 4.99ms Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 4 Unknown, 0 Unchecked, 9636.59ms Time] [2021-11-12 22:52:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-12 22:52:14,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2021-11-12 22:52:14,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 77 states have internal predecessors, (84), 17 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (24), 15 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-12 22:52:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2021-11-12 22:52:14,730 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 43 [2021-11-12 22:52:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:14,730 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2021-11-12 22:52:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:52:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2021-11-12 22:52:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:52:14,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:14,734 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:52:14,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 22:52:14,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:14,957 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:14,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1853619162, now seen corresponding path program 1 times [2021-11-12 22:52:14,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:14,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518927189] [2021-11-12 22:52:14,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:14,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:14,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:14,963 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:14,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:52:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:19,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:52:19,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:52:19,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:52:19,909 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:19,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518927189] [2021-11-12 22:52:19,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518927189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:19,909 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:19,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:52:19,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977272067] [2021-11-12 22:52:19,910 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:19,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:52:19,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:52:19,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:19,911 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:52:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:20,013 INFO L93 Difference]: Finished difference Result 194 states and 244 transitions. [2021-11-12 22:52:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:52:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-11-12 22:52:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:20,016 INFO L225 Difference]: With dead ends: 194 [2021-11-12 22:52:20,016 INFO L226 Difference]: Without dead ends: 112 [2021-11-12 22:52:20,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:20,019 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 28 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.39ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:20,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 275 Invalid, 18 Unknown, 0 Unchecked, 2.19ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 70.39ms Time] [2021-11-12 22:52:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-12 22:52:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 100. [2021-11-12 22:52:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 77 states have internal predecessors, (83), 17 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (24), 15 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-12 22:52:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2021-11-12 22:52:20,037 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 43 [2021-11-12 22:52:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:20,038 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2021-11-12 22:52:20,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:52:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2021-11-12 22:52:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:52:20,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:20,041 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:52:20,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:20,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:20,254 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:20,255 INFO L85 PathProgramCache]: Analyzing trace with hash 573755484, now seen corresponding path program 1 times [2021-11-12 22:52:20,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:20,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873253736] [2021-11-12 22:52:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:20,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:20,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:20,260 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:20,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:53:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:00,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 22:53:00,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:01,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:01,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 162 [2021-11-12 22:53:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:53:12,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:19,553 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-12 22:53:19,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 240 treesize of output 1 [2021-11-12 22:53:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:53:19,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:19,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873253736] [2021-11-12 22:53:19,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873253736] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:53:19,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:53:19,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2021-11-12 22:53:19,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635621996] [2021-11-12 22:53:19,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:19,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:53:19,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:19,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:53:19,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:53:19,789 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:53:22,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:24,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:26,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:28,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:29,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:30,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:34,915 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2021-11-12 22:53:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:53:34,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2021-11-12 22:53:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:34,920 INFO L225 Difference]: With dead ends: 189 [2021-11-12 22:53:34,920 INFO L226 Difference]: Without dead ends: 112 [2021-11-12 22:53:34,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:53:34,922 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 35 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12612.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.54ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13050.45ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:34,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 314 Invalid, 113 Unknown, 0 Unchecked, 3.54ms Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 4 Unknown, 0 Unchecked, 13050.45ms Time] [2021-11-12 22:53:34,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-12 22:53:34,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 104. [2021-11-12 22:53:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 81 states have internal predecessors, (88), 17 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (24), 15 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-12 22:53:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 129 transitions. [2021-11-12 22:53:34,938 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 129 transitions. Word has length 43 [2021-11-12 22:53:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:34,938 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 129 transitions. [2021-11-12 22:53:34,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:53:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 129 transitions. [2021-11-12 22:53:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:53:34,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:34,940 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:53:35,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:53:35,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:35,145 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:35,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash 831920922, now seen corresponding path program 1 times [2021-11-12 22:53:35,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:35,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418689620] [2021-11-12 22:53:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:35,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:35,150 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:53:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:38,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:53:38,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:53:39,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:53:40,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:40,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418689620] [2021-11-12 22:53:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418689620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:40,065 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:40,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:53:40,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588102396] [2021-11-12 22:53:40,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:40,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:53:40,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:40,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:53:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:53:40,066 INFO L87 Difference]: Start difference. First operand 104 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:53:42,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:44,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:46,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:47,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:48,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:48,588 INFO L93 Difference]: Finished difference Result 186 states and 229 transitions. [2021-11-12 22:53:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:53:48,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-11-12 22:53:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:48,592 INFO L225 Difference]: With dead ends: 186 [2021-11-12 22:53:48,592 INFO L226 Difference]: Without dead ends: 105 [2021-11-12 22:53:48,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:53:48,594 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 27 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7935.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8106.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:48,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 313 Invalid, 60 Unknown, 0 Unchecked, 2.13ms Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 8106.69ms Time] [2021-11-12 22:53:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-12 22:53:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2021-11-12 22:53:48,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 79 states have internal predecessors, (84), 17 states have call successors, (17), 7 states have call predecessors, (17), 11 states have return successors, (24), 15 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-12 22:53:48,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 125 transitions. [2021-11-12 22:53:48,608 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 125 transitions. Word has length 43 [2021-11-12 22:53:48,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:48,608 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 125 transitions. [2021-11-12 22:53:48,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-12 22:53:48,609 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 125 transitions. [2021-11-12 22:53:48,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:53:48,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:48,610 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-12 22:53:48,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:53:48,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:48,822 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:48,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:48,823 INFO L85 PathProgramCache]: Analyzing trace with hash -375980076, now seen corresponding path program 1 times [2021-11-12 22:53:48,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:48,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939917772] [2021-11-12 22:53:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:48,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:48,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:48,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:48,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7daffbb1-9e58-45dc-9a58-103d20516eed/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:56:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:26,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:56:26,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:26,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:26,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 494 [2021-11-12 22:56:26,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:26,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1103 [2021-11-12 22:56:26,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1103 treesize of output 1072 [2021-11-12 22:56:26,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,585 INFO L244 Elim1Store]: Index analysis took 469 ms [2021-11-12 22:56:27,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 161 [2021-11-12 22:56:27,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,737 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-12 22:56:27,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 119 [2021-11-12 22:56:27,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:27,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 406 [2021-11-12 22:56:27,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 387 [2021-11-12 22:56:27,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:27,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:28,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:28,004 INFO L244 Elim1Store]: Index analysis took 134 ms [2021-11-12 22:56:28,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 94 [2021-11-12 22:56:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:56:29,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:43,180 WARN L227 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 207 DAG size of output: 10 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:56:43,181 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-12 22:56:43,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 420 treesize of output 332 [2021-11-12 22:56:44,595 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-12 22:56:44,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 332 treesize of output 244 [2021-11-12 22:56:45,450 INFO L354 Elim1Store]: treesize reduction 1602, result has 0.6 percent of original size [2021-11-12 22:56:45,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 244 treesize of output 151 [2021-11-12 22:56:45,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 143 [2021-11-12 22:56:45,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:45,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 436 [2021-11-12 22:56:45,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 418 [2021-11-12 22:56:46,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 805361734 treesize of output 805328962