./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash edc61b8c285d87a6706f10a0369a5dd380942e398b4b2231a7f494f856622f23 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:16:42,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:16:42,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:16:42,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:16:42,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:16:42,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:16:42,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:16:42,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:16:42,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:16:42,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:16:42,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:16:42,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:16:42,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:16:42,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:16:42,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:16:42,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:16:42,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:16:42,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:16:42,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:16:42,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:16:42,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:16:42,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:16:42,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:16:42,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:16:42,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:16:42,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:16:42,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:16:42,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:16:42,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:16:42,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:16:42,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:16:42,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:16:42,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:16:42,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:16:42,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:16:42,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:16:42,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:16:42,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:16:42,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:16:42,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:16:42,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:16:42,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-21 19:16:42,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:16:42,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:16:42,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:16:42,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:16:42,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:16:42,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:16:42,532 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:16:42,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:16:42,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:16:42,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:16:42,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:16:42,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:16:42,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:16:42,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:16:42,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:16:42,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:16:42,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:16:42,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:16:42,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:16:42,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:16:42,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:16:42,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:16:42,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:16:42,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:16:42,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:16:42,537 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:16:42,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:16:42,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:16:42,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:16:42,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edc61b8c285d87a6706f10a0369a5dd380942e398b4b2231a7f494f856622f23 [2021-10-21 19:16:42,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:16:42,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:16:42,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:16:42,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:16:42,825 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:16:42,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-10-21 19:16:42,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/data/43f217cf6/a36a07db8c33452eb37a1c75d00e5692/FLAG5ff43c67f [2021-10-21 19:16:43,721 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:16:43,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-10-21 19:16:43,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/data/43f217cf6/a36a07db8c33452eb37a1c75d00e5692/FLAG5ff43c67f [2021-10-21 19:16:44,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/data/43f217cf6/a36a07db8c33452eb37a1c75d00e5692 [2021-10-21 19:16:44,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:16:44,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:16:44,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:16:44,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:16:44,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:16:44,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:16:44" (1/1) ... [2021-10-21 19:16:44,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1994ca53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:44, skipping insertion in model container [2021-10-21 19:16:44,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:16:44" (1/1) ... [2021-10-21 19:16:44,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:16:44,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:16:44,680 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_185dd402-be6e-46e6-9cb3-b69ded740056/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-10-21 19:16:44,688 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_185dd402-be6e-46e6-9cb3-b69ded740056/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-10-21 19:16:44,718 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-21 19:16:44,735 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-21 19:16:45,838 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,839 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,839 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,840 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,841 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,855 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,856 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,858 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,859 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,861 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,862 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,862 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:45,863 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-21 19:16:46,384 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-21 19:16:46,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-21 19:16:46,386 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-21 19:16:46,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-21 19:16:46,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-21 19:16:46,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-21 19:16:46,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-21 19:16:46,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-21 19:16:46,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-21 19:16:46,619 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-21 19:16:46,934 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,935 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,974 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,976 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,992 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:46,992 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,011 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,013 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,016 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,019 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,019 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,020 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,020 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:16:47,150 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:16:47,178 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_185dd402-be6e-46e6-9cb3-b69ded740056/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-10-21 19:16:47,178 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_185dd402-be6e-46e6-9cb3-b69ded740056/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-10-21 19:16:47,180 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-21 19:16:47,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-21 19:16:47,236 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,237 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,237 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,238 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,238 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,248 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,250 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,251 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,252 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,252 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,253 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,254 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,254 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-21 19:16:47,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-21 19:16:47,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-21 19:16:47,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-21 19:16:47,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-21 19:16:47,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-21 19:16:47,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-21 19:16:47,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-21 19:16:47,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-21 19:16:47,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-21 19:16:47,328 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-21 19:16:47,475 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,476 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,486 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,488 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,492 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,493 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,508 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,509 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,510 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,510 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,511 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,512 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,512 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-21 19:16:47,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:16:47,794 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:16:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47 WrapperNode [2021-10-21 19:16:47,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:16:47,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:16:47,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:16:47,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:16:47,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:47,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:16:48,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:16:48,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:16:48,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:16:48,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:16:48,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:16:48,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:16:48,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:16:48,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (1/1) ... [2021-10-21 19:16:48,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:16:48,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:48,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:48,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:16:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:16:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:16:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:16:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:16:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:16:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:16:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:16:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:16:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:16:58,960 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !true; [2021-10-21 19:16:58,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:16:58,967 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-21 19:16:58,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:58 BoogieIcfgContainer [2021-10-21 19:16:58,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:16:58,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:16:58,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:16:58,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:16:58,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:16:44" (1/3) ... [2021-10-21 19:16:58,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3129b93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:16:58, skipping insertion in model container [2021-10-21 19:16:58,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:47" (2/3) ... [2021-10-21 19:16:58,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3129b93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:16:58, skipping insertion in model container [2021-10-21 19:16:58,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:58" (3/3) ... [2021-10-21 19:16:58,978 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness.i [2021-10-21 19:16:58,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:16:58,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 19:16:59,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:16:59,036 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=PETRI_NET, 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 [2021-10-21 19:16:59,036 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-21 19:16:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 19:16:59,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:59,060 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:59,060 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:16:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:59,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1956444402, now seen corresponding path program 1 times [2021-10-21 19:16:59,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:59,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618735352] [2021-10-21 19:16:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:59,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:59,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:59,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618735352] [2021-10-21 19:16:59,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618735352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:16:59,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:16:59,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:16:59,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702170968] [2021-10-21 19:16:59,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:16:59,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:16:59,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:16:59,828 INFO L87 Difference]: Start difference. First operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:59,864 INFO L93 Difference]: Finished difference Result 221 states and 294 transitions. [2021-10-21 19:16:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:16:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-21 19:16:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:59,878 INFO L225 Difference]: With dead ends: 221 [2021-10-21 19:16:59,878 INFO L226 Difference]: Without dead ends: 106 [2021-10-21 19:16:59,881 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:16:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-21 19:16:59,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-21 19:16:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 105 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2021-10-21 19:16:59,940 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 31 [2021-10-21 19:16:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:59,941 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2021-10-21 19:16:59,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2021-10-21 19:16:59,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 19:16:59,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:59,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:59,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:16:59,946 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:16:59,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:59,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1279980632, now seen corresponding path program 1 times [2021-10-21 19:16:59,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:59,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147142458] [2021-10-21 19:16:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:59,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:00,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:00,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147142458] [2021-10-21 19:17:00,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147142458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:00,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:00,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:00,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466884413] [2021-10-21 19:17:00,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:00,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:00,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:00,324 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:00,458 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2021-10-21 19:17:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:00,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-21 19:17:00,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:00,466 INFO L225 Difference]: With dead ends: 272 [2021-10-21 19:17:00,466 INFO L226 Difference]: Without dead ends: 191 [2021-10-21 19:17:00,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-10-21 19:17:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 108. [2021-10-21 19:17:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 107 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2021-10-21 19:17:00,490 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 31 [2021-10-21 19:17:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:00,491 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2021-10-21 19:17:00,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2021-10-21 19:17:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 19:17:00,492 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:00,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:00,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:17:00,493 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:00,493 INFO L82 PathProgramCache]: Analyzing trace with hash 422969666, now seen corresponding path program 1 times [2021-10-21 19:17:00,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:00,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255149856] [2021-10-21 19:17:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:00,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:00,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:00,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255149856] [2021-10-21 19:17:00,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255149856] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:00,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:00,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:00,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028887624] [2021-10-21 19:17:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:00,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:00,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:00,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:00,902 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:01,004 INFO L93 Difference]: Finished difference Result 202 states and 245 transitions. [2021-10-21 19:17:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:01,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-21 19:17:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:01,007 INFO L225 Difference]: With dead ends: 202 [2021-10-21 19:17:01,007 INFO L226 Difference]: Without dead ends: 189 [2021-10-21 19:17:01,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-10-21 19:17:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 110. [2021-10-21 19:17:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2314814814814814) internal successors, (133), 109 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2021-10-21 19:17:01,017 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 33 [2021-10-21 19:17:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:01,017 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2021-10-21 19:17:01,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,018 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2021-10-21 19:17:01,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:17:01,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:01,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:01,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:17:01,020 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:01,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:01,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1472200601, now seen corresponding path program 1 times [2021-10-21 19:17:01,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:01,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455370021] [2021-10-21 19:17:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:01,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:01,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:01,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455370021] [2021-10-21 19:17:01,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455370021] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:01,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:01,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:01,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221377916] [2021-10-21 19:17:01,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:01,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:01,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:01,312 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:01,368 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2021-10-21 19:17:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:01,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-21 19:17:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:01,370 INFO L225 Difference]: With dead ends: 123 [2021-10-21 19:17:01,370 INFO L226 Difference]: Without dead ends: 110 [2021-10-21 19:17:01,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-21 19:17:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-10-21 19:17:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 107 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-10-21 19:17:01,381 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 34 [2021-10-21 19:17:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:01,381 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-21 19:17:01,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-10-21 19:17:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 19:17:01,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:01,387 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:01,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:17:01,388 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:01,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1643067430, now seen corresponding path program 1 times [2021-10-21 19:17:01,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:01,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428380956] [2021-10-21 19:17:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:01,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:01,491 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:01,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396727085] [2021-10-21 19:17:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:01,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:01,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:01,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:01,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:17:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:02,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:17:02,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:02,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:02,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428380956] [2021-10-21 19:17:02,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:02,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396727085] [2021-10-21 19:17:02,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396727085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:02,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:02,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:02,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163064939] [2021-10-21 19:17:02,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:02,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:02,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:02,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:02,887 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:03,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:03,112 INFO L93 Difference]: Finished difference Result 240 states and 286 transitions. [2021-10-21 19:17:03,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:17:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-21 19:17:03,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:03,114 INFO L225 Difference]: With dead ends: 240 [2021-10-21 19:17:03,114 INFO L226 Difference]: Without dead ends: 175 [2021-10-21 19:17:03,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-21 19:17:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 111. [2021-10-21 19:17:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-10-21 19:17:03,125 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 41 [2021-10-21 19:17:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:03,126 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-10-21 19:17:03,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-10-21 19:17:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-21 19:17:03,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:03,127 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:03,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:03,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:03,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:03,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:03,349 INFO L82 PathProgramCache]: Analyzing trace with hash 851201738, now seen corresponding path program 1 times [2021-10-21 19:17:03,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:03,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971016876] [2021-10-21 19:17:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:03,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:03,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:03,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971016876] [2021-10-21 19:17:03,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971016876] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:03,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:03,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:03,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592197039] [2021-10-21 19:17:03,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:03,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:03,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:03,938 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:04,042 INFO L93 Difference]: Finished difference Result 292 states and 350 transitions. [2021-10-21 19:17:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:04,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-21 19:17:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:04,044 INFO L225 Difference]: With dead ends: 292 [2021-10-21 19:17:04,045 INFO L226 Difference]: Without dead ends: 204 [2021-10-21 19:17:04,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:04,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-21 19:17:04,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 114. [2021-10-21 19:17:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-10-21 19:17:04,064 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 43 [2021-10-21 19:17:04,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:04,066 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-10-21 19:17:04,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-10-21 19:17:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-21 19:17:04,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:04,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:04,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:17:04,070 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:04,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:04,076 INFO L82 PathProgramCache]: Analyzing trace with hash 341728648, now seen corresponding path program 1 times [2021-10-21 19:17:04,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:04,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125540072] [2021-10-21 19:17:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:04,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:04,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:04,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:04,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125540072] [2021-10-21 19:17:04,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125540072] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:04,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:04,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:17:04,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098531858] [2021-10-21 19:17:04,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:17:04,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:04,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:17:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:04,728 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:12,238 INFO L93 Difference]: Finished difference Result 139 states and 164 transitions. [2021-10-21 19:17:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:17:12,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-21 19:17:12,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:12,240 INFO L225 Difference]: With dead ends: 139 [2021-10-21 19:17:12,240 INFO L226 Difference]: Without dead ends: 120 [2021-10-21 19:17:12,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 388.2ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:17:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-21 19:17:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2021-10-21 19:17:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 115 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2021-10-21 19:17:12,247 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 43 [2021-10-21 19:17:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:12,247 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2021-10-21 19:17:12,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2021-10-21 19:17:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-21 19:17:12,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:12,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:12,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:17:12,249 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:12,250 INFO L82 PathProgramCache]: Analyzing trace with hash 2116736010, now seen corresponding path program 1 times [2021-10-21 19:17:12,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:12,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23655668] [2021-10-21 19:17:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:12,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:12,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:12,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23655668] [2021-10-21 19:17:12,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23655668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:12,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:12,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:12,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517187428] [2021-10-21 19:17:12,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:12,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:12,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:12,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:12,533 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:12,602 INFO L93 Difference]: Finished difference Result 138 states and 162 transitions. [2021-10-21 19:17:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:12,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-21 19:17:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:12,604 INFO L225 Difference]: With dead ends: 138 [2021-10-21 19:17:12,604 INFO L226 Difference]: Without dead ends: 114 [2021-10-21 19:17:12,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:12,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-21 19:17:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-21 19:17:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1875) internal successors, (133), 113 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2021-10-21 19:17:12,610 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 43 [2021-10-21 19:17:12,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:12,611 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2021-10-21 19:17:12,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2021-10-21 19:17:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-21 19:17:12,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:12,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:12,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:17:12,613 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash 519133667, now seen corresponding path program 1 times [2021-10-21 19:17:12,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:12,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87082406] [2021-10-21 19:17:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:12,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:13,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:13,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87082406] [2021-10-21 19:17:13,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87082406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:13,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:13,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:13,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518176877] [2021-10-21 19:17:13,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:13,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:13,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:13,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:13,009 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:18,154 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2021-10-21 19:17:18,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:17:18,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-21 19:17:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:18,156 INFO L225 Difference]: With dead ends: 135 [2021-10-21 19:17:18,156 INFO L226 Difference]: Without dead ends: 115 [2021-10-21 19:17:18,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 260.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:17:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-21 19:17:18,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-10-21 19:17:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 113 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2021-10-21 19:17:18,163 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 45 [2021-10-21 19:17:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:18,163 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2021-10-21 19:17:18,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2021-10-21 19:17:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-21 19:17:18,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:18,164 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:18,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:17:18,165 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:18,165 INFO L82 PathProgramCache]: Analyzing trace with hash 627267248, now seen corresponding path program 1 times [2021-10-21 19:17:18,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:18,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010882453] [2021-10-21 19:17:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:18,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:18,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:18,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010882453] [2021-10-21 19:17:18,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010882453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:18,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:18,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:17:18,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967372344] [2021-10-21 19:17:18,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:17:18,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:17:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:18,756 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:24,173 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2021-10-21 19:17:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:17:24,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-21 19:17:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:24,175 INFO L225 Difference]: With dead ends: 146 [2021-10-21 19:17:24,175 INFO L226 Difference]: Without dead ends: 118 [2021-10-21 19:17:24,176 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 337.0ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:17:24,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-21 19:17:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2021-10-21 19:17:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 115 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:24,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2021-10-21 19:17:24,182 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 46 [2021-10-21 19:17:24,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:24,183 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2021-10-21 19:17:24,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:24,183 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2021-10-21 19:17:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-21 19:17:24,184 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:24,184 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:24,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:17:24,185 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:24,186 INFO L82 PathProgramCache]: Analyzing trace with hash 600005105, now seen corresponding path program 1 times [2021-10-21 19:17:24,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:24,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998483318] [2021-10-21 19:17:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:24,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:24,299 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:24,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649295056] [2021-10-21 19:17:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:24,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:24,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:24,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:24,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:17:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:25,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:17:25,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:25,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:25,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998483318] [2021-10-21 19:17:25,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:25,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649295056] [2021-10-21 19:17:25,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649295056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:25,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:25,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269600525] [2021-10-21 19:17:25,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:25,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:25,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:25,591 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:25,643 INFO L93 Difference]: Finished difference Result 183 states and 204 transitions. [2021-10-21 19:17:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-10-21 19:17:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:25,645 INFO L225 Difference]: With dead ends: 183 [2021-10-21 19:17:25,645 INFO L226 Difference]: Without dead ends: 116 [2021-10-21 19:17:25,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-21 19:17:25,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2021-10-21 19:17:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.135135135135135) internal successors, (126), 112 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2021-10-21 19:17:25,651 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 59 [2021-10-21 19:17:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:25,651 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2021-10-21 19:17:25,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2021-10-21 19:17:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-21 19:17:25,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:25,652 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:25,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:25,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-21 19:17:25,879 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:25,879 INFO L82 PathProgramCache]: Analyzing trace with hash -551778192, now seen corresponding path program 1 times [2021-10-21 19:17:25,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:25,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653690576] [2021-10-21 19:17:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:25,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:25,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:25,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717954621] [2021-10-21 19:17:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:25,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:25,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:25,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:17:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:17:27,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:27,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653690576] [2021-10-21 19:17:27,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:27,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717954621] [2021-10-21 19:17:27,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717954621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:27,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:27,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:27,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455643104] [2021-10-21 19:17:27,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:27,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:27,326 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,507 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2021-10-21 19:17:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:17:27,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-10-21 19:17:27,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,510 INFO L225 Difference]: With dead ends: 214 [2021-10-21 19:17:27,510 INFO L226 Difference]: Without dead ends: 182 [2021-10-21 19:17:27,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:27,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-21 19:17:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 116. [2021-10-21 19:17:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.131578947368421) internal successors, (129), 115 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 129 transitions. [2021-10-21 19:17:27,519 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 129 transitions. Word has length 62 [2021-10-21 19:17:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,519 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 129 transitions. [2021-10-21 19:17:27,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 129 transitions. [2021-10-21 19:17:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-21 19:17:27,521 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,521 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:27,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 19:17:27,736 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:27,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:27,737 INFO L82 PathProgramCache]: Analyzing trace with hash -402269396, now seen corresponding path program 1 times [2021-10-21 19:17:27,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:27,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102030546] [2021-10-21 19:17:27,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:27,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:27,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561578415] [2021-10-21 19:17:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:27,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:27,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:27,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:17:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:28,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 2727 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:17:28,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:29,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102030546] [2021-10-21 19:17:29,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561578415] [2021-10-21 19:17:29,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561578415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:29,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:29,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:29,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772420345] [2021-10-21 19:17:29,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:29,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:29,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:29,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:29,175 INFO L87 Difference]: Start difference. First operand 116 states and 129 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:29,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:29,411 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2021-10-21 19:17:29,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:29,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-21 19:17:29,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:29,419 INFO L225 Difference]: With dead ends: 148 [2021-10-21 19:17:29,419 INFO L226 Difference]: Without dead ends: 116 [2021-10-21 19:17:29,420 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-21 19:17:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2021-10-21 19:17:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.1261261261261262) internal successors, (125), 112 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2021-10-21 19:17:29,426 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 64 [2021-10-21 19:17:29,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:29,427 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2021-10-21 19:17:29,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2021-10-21 19:17:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-21 19:17:29,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:29,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:29,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-21 19:17:29,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:29,644 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:29,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:29,644 INFO L82 PathProgramCache]: Analyzing trace with hash 478157639, now seen corresponding path program 1 times [2021-10-21 19:17:29,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:29,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846921727] [2021-10-21 19:17:29,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:29,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:29,808 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:29,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318530760] [2021-10-21 19:17:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:29,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:29,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:29,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:29,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:17:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:30,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:17:30,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:31,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:31,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846921727] [2021-10-21 19:17:31,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:31,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318530760] [2021-10-21 19:17:31,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318530760] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:31,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:31,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:31,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262405511] [2021-10-21 19:17:31,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:31,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:31,198 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:31,310 INFO L93 Difference]: Finished difference Result 217 states and 233 transitions. [2021-10-21 19:17:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:17:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-21 19:17:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:31,313 INFO L225 Difference]: With dead ends: 217 [2021-10-21 19:17:31,313 INFO L226 Difference]: Without dead ends: 184 [2021-10-21 19:17:31,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 113.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:17:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-21 19:17:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 116. [2021-10-21 19:17:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.1228070175438596) internal successors, (128), 115 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2021-10-21 19:17:31,322 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 68 [2021-10-21 19:17:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:31,322 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2021-10-21 19:17:31,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2021-10-21 19:17:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-21 19:17:31,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:31,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:31,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:31,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:17:31,548 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:31,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:31,549 INFO L82 PathProgramCache]: Analyzing trace with hash 776073283, now seen corresponding path program 1 times [2021-10-21 19:17:31,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:31,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408463080] [2021-10-21 19:17:31,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:31,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:31,648 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:31,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338720068] [2021-10-21 19:17:31,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:31,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:31,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:31,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:31,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:17:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:32,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:17:32,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:33,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:33,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408463080] [2021-10-21 19:17:33,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:33,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338720068] [2021-10-21 19:17:33,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338720068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:33,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:33,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:33,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318337467] [2021-10-21 19:17:33,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:33,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:33,026 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:33,300 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2021-10-21 19:17:33,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:17:33,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-21 19:17:33,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:33,311 INFO L225 Difference]: With dead ends: 149 [2021-10-21 19:17:33,311 INFO L226 Difference]: Without dead ends: 111 [2021-10-21 19:17:33,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 145.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:33,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-10-21 19:17:33,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-10-21 19:17:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.110091743119266) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2021-10-21 19:17:33,317 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 70 [2021-10-21 19:17:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:33,318 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2021-10-21 19:17:33,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2021-10-21 19:17:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-21 19:17:33,318 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:33,319 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:33,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:33,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 19:17:33,532 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:33,533 INFO L82 PathProgramCache]: Analyzing trace with hash -776040076, now seen corresponding path program 1 times [2021-10-21 19:17:33,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:33,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788797124] [2021-10-21 19:17:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:33,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:33,632 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:33,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626584063] [2021-10-21 19:17:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:33,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:33,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:33,634 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:33,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:17:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:34,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:17:34,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:34,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:34,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788797124] [2021-10-21 19:17:34,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:34,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626584063] [2021-10-21 19:17:34,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626584063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:34,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:34,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:34,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783276871] [2021-10-21 19:17:34,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:34,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:34,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:34,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:34,941 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:35,034 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2021-10-21 19:17:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:35,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-10-21 19:17:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:35,036 INFO L225 Difference]: With dead ends: 194 [2021-10-21 19:17:35,036 INFO L226 Difference]: Without dead ends: 109 [2021-10-21 19:17:35,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:35,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-21 19:17:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-10-21 19:17:35,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0961538461538463) internal successors, (114), 105 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2021-10-21 19:17:35,047 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 78 [2021-10-21 19:17:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:35,048 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2021-10-21 19:17:35,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2021-10-21 19:17:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-21 19:17:35,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:35,049 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:35,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:35,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-21 19:17:35,253 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:35,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:35,254 INFO L82 PathProgramCache]: Analyzing trace with hash -589599749, now seen corresponding path program 1 times [2021-10-21 19:17:35,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:35,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169096744] [2021-10-21 19:17:35,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:35,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:35,348 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:35,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581218659] [2021-10-21 19:17:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:35,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:35,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:35,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:35,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:17:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:36,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:17:36,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:36,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:36,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169096744] [2021-10-21 19:17:36,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:36,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581218659] [2021-10-21 19:17:36,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581218659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:36,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:36,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:17:36,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125296660] [2021-10-21 19:17:36,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:36,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:36,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:36,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:36,781 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:36,871 INFO L93 Difference]: Finished difference Result 187 states and 200 transitions. [2021-10-21 19:17:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-10-21 19:17:36,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:36,873 INFO L225 Difference]: With dead ends: 187 [2021-10-21 19:17:36,874 INFO L226 Difference]: Without dead ends: 106 [2021-10-21 19:17:36,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-21 19:17:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-21 19:17:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 105 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2021-10-21 19:17:36,882 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 79 [2021-10-21 19:17:36,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:36,882 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2021-10-21 19:17:36,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2021-10-21 19:17:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-21 19:17:36,883 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:36,883 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:36,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:37,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:17:37,108 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:17:37,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:37,109 INFO L82 PathProgramCache]: Analyzing trace with hash -658597663, now seen corresponding path program 1 times [2021-10-21 19:17:37,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:37,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13935713] [2021-10-21 19:17:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:37,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:37,236 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:17:37,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678779206] [2021-10-21 19:17:37,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:37,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:37,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:37,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:17:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:38,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:17:38,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:38,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:38,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13935713] [2021-10-21 19:17:38,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:17:38,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678779206] [2021-10-21 19:17:38,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678779206] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:38,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:38,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:17:38,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798604231] [2021-10-21 19:17:38,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:17:38,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:38,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:17:38,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:38,498 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:38,616 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2021-10-21 19:17:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:17:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-10-21 19:17:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:38,617 INFO L225 Difference]: With dead ends: 106 [2021-10-21 19:17:38,617 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:17:38,618 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:17:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:17:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:17:38,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:38,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:17:38,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2021-10-21 19:17:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:38,619 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:17:38,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:17:38,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:17:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:17:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:17:38,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:38,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-21 19:17:38,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:17:38,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:38,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:39,123 INFO L857 garLoopResultBuilder]: For program point L10143-2(lines 10143 10145) no Hoare annotation was computed. [2021-10-21 19:17:39,123 INFO L857 garLoopResultBuilder]: For program point L10143(lines 10143 10145) no Hoare annotation was computed. [2021-10-21 19:17:39,123 INFO L853 garLoopResultBuilder]: At program point L250(lines 248 251) the Hoare annotation is: false [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385-3(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385-2(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385-1(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L9202(lines 9202 9204) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385-5(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point L7385-4(lines 7385 7387) no Hoare annotation was computed. [2021-10-21 19:17:39,124 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L6940(lines 6934 6941) the Hoare annotation is: false [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L10062-1(lines 10017 10064) the Hoare annotation is: false [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L10062(lines 10017 10064) the Hoare annotation is: false [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L9220(lines 9220 9261) the Hoare annotation is: (<= (+ |ULTIMATE.start_aws_hash_table_init_#res| 1) 0) [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L2630(lines 2626 2631) the Hoare annotation is: false [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L2630-1(lines 2626 2631) the Hoare annotation is: false [2021-10-21 19:17:39,125 INFO L857 garLoopResultBuilder]: For program point L2498(lines 2498 2499) no Hoare annotation was computed. [2021-10-21 19:17:39,125 INFO L857 garLoopResultBuilder]: For program point L2498-2(lines 2498 2499) no Hoare annotation was computed. [2021-10-21 19:17:39,125 INFO L857 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2021-10-21 19:17:39,125 INFO L853 garLoopResultBuilder]: At program point L10130(lines 10119 10131) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_hash_table_state_required_bytes_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0))) [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L9189(lines 9171 9190) the Hoare annotation is: (and (= |ULTIMATE.start_s_alloc_state_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_s_alloc_state_#res.offset| 0)) [2021-10-21 19:17:39,126 INFO L860 garLoopResultBuilder]: At program point L10147(line 10147) the Hoare annotation is: true [2021-10-21 19:17:39,126 INFO L857 garLoopResultBuilder]: For program point L9173(lines 9173 9177) no Hoare annotation was computed. [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L2501-1(lines 2497 2502) the Hoare annotation is: false [2021-10-21 19:17:39,126 INFO L857 garLoopResultBuilder]: For program point L7010(lines 7010 7014) no Hoare annotation was computed. [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: false [2021-10-21 19:17:39,126 INFO L857 garLoopResultBuilder]: For program point L9256(lines 9256 9258) no Hoare annotation was computed. [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L2501-2(lines 2497 2502) the Hoare annotation is: false [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L255(lines 253 256) the Hoare annotation is: false [2021-10-21 19:17:39,126 INFO L853 garLoopResultBuilder]: At program point L255-1(lines 253 256) the Hoare annotation is: false [2021-10-21 19:17:39,127 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-21 19:17:39,127 INFO L853 garLoopResultBuilder]: At program point L255-2(lines 253 256) the Hoare annotation is: false [2021-10-21 19:17:39,127 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-21 19:17:39,127 INFO L853 garLoopResultBuilder]: At program point L2617(lines 2613 2621) the Hoare annotation is: false [2021-10-21 19:17:39,127 INFO L857 garLoopResultBuilder]: For program point L10132(lines 10132 10146) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,128 INFO L857 garLoopResultBuilder]: For program point L10019(lines 10019 10023) no Hoare annotation was computed. [2021-10-21 19:17:39,129 INFO L857 garLoopResultBuilder]: For program point L10019-1(lines 10019 10023) no Hoare annotation was computed. [2021-10-21 19:17:39,129 INFO L857 garLoopResultBuilder]: For program point L9210(lines 9210 9212) no Hoare annotation was computed. [2021-10-21 19:17:39,129 INFO L857 garLoopResultBuilder]: For program point L9210-2(lines 9210 9212) no Hoare annotation was computed. [2021-10-21 19:17:39,129 INFO L853 garLoopResultBuilder]: At program point L9260-2(line 9260) the Hoare annotation is: false [2021-10-21 19:17:39,129 INFO L857 garLoopResultBuilder]: For program point L9260-3(line 9260) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,130 INFO L857 garLoopResultBuilder]: For program point L2638(lines 2638 2641) no Hoare annotation was computed. [2021-10-21 19:17:39,131 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,131 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,131 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,131 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,131 INFO L857 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,132 INFO L857 garLoopResultBuilder]: For program point L210-9(lines 210 212) no Hoare annotation was computed. [2021-10-21 19:17:39,132 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,132 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,132 INFO L857 garLoopResultBuilder]: For program point L9196(lines 9196 9198) no Hoare annotation was computed. [2021-10-21 19:17:39,132 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L9196-2(lines 9196 9198) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,133 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,134 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-10-21 19:17:39,134 INFO L857 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,134 INFO L857 garLoopResultBuilder]: For program point L211-18(line 211) no Hoare annotation was computed. [2021-10-21 19:17:39,134 INFO L853 garLoopResultBuilder]: At program point L2590(lines 2586 2594) the Hoare annotation is: false [2021-10-21 19:17:39,134 INFO L853 garLoopResultBuilder]: At program point L2590-2(lines 2586 2594) the Hoare annotation is: false [2021-10-21 19:17:39,135 INFO L853 garLoopResultBuilder]: At program point L2590-1(lines 2586 2594) the Hoare annotation is: false [2021-10-21 19:17:39,135 INFO L857 garLoopResultBuilder]: For program point L10122(lines 10122 10124) no Hoare annotation was computed. [2021-10-21 19:17:39,135 INFO L853 garLoopResultBuilder]: At program point L6951-1(lines 6950 6952) the Hoare annotation is: false [2021-10-21 19:17:39,135 INFO L860 garLoopResultBuilder]: At program point L6951(lines 6950 6952) the Hoare annotation is: true [2021-10-21 19:17:39,135 INFO L857 garLoopResultBuilder]: For program point L7017-2(lines 7017 7019) no Hoare annotation was computed. [2021-10-21 19:17:39,136 INFO L857 garLoopResultBuilder]: For program point L7017(lines 7017 7019) no Hoare annotation was computed. [2021-10-21 19:17:39,136 INFO L853 garLoopResultBuilder]: At program point L2657(lines 2637 2658) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (<= (+ |ULTIMATE.start_aws_round_up_to_power_of_two_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-10-21 19:17:39,136 INFO L857 garLoopResultBuilder]: For program point L2542(lines 2542 2543) no Hoare annotation was computed. [2021-10-21 19:17:39,136 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:17:39,136 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-21 19:17:39,137 INFO L857 garLoopResultBuilder]: For program point L9182(lines 9182 9186) no Hoare annotation was computed. [2021-10-21 19:17:39,137 INFO L857 garLoopResultBuilder]: For program point L10008-3(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,137 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-21 19:17:39,137 INFO L857 garLoopResultBuilder]: For program point L10008-5(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,137 INFO L853 garLoopResultBuilder]: At program point L10008-6(lines 10006 10009) the Hoare annotation is: false [2021-10-21 19:17:39,138 INFO L857 garLoopResultBuilder]: For program point L10008(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,138 INFO L857 garLoopResultBuilder]: For program point L2642(lines 2642 2644) no Hoare annotation was computed. [2021-10-21 19:17:39,138 INFO L857 garLoopResultBuilder]: For program point L10008-2(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,138 INFO L857 garLoopResultBuilder]: For program point L10008-12(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,138 INFO L853 garLoopResultBuilder]: At program point L10008-13(lines 10006 10009) the Hoare annotation is: false [2021-10-21 19:17:39,139 INFO L853 garLoopResultBuilder]: At program point L1998(lines 1988 1999) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-10-21 19:17:39,139 INFO L853 garLoopResultBuilder]: At program point L1998-1(lines 1988 1999) the Hoare annotation is: false [2021-10-21 19:17:39,139 INFO L853 garLoopResultBuilder]: At program point L6986(lines 6984 6987) the Hoare annotation is: false [2021-10-21 19:17:39,139 INFO L857 garLoopResultBuilder]: For program point L10008-7(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,139 INFO L853 garLoopResultBuilder]: At program point L1998-2(lines 1988 1999) the Hoare annotation is: false [2021-10-21 19:17:39,140 INFO L853 garLoopResultBuilder]: At program point L1998-3(lines 1988 1999) the Hoare annotation is: false [2021-10-21 19:17:39,140 INFO L857 garLoopResultBuilder]: For program point L10008-9(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,140 INFO L853 garLoopResultBuilder]: At program point L1998-4(lines 1988 1999) the Hoare annotation is: false [2021-10-21 19:17:39,140 INFO L857 garLoopResultBuilder]: For program point L10008-10(line 10008) no Hoare annotation was computed. [2021-10-21 19:17:39,140 INFO L853 garLoopResultBuilder]: At program point L1998-5(lines 1988 1999) the Hoare annotation is: (and (= ULTIMATE.start_aws_mem_calloc_~mem~1.offset 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= ULTIMATE.start_aws_mem_calloc_~mem~1.base 0)) [2021-10-21 19:17:39,141 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7001 7021) the Hoare annotation is: (and (= |ULTIMATE.start_aws_mem_calloc_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_aws_mem_calloc_#res.offset| 0)) [2021-10-21 19:17:39,141 INFO L853 garLoopResultBuilder]: At program point L9217(lines 9193 9218) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (<= (+ |ULTIMATE.start_s_update_template_size_#res| 1) 0)) [2021-10-21 19:17:39,141 INFO L853 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: false [2021-10-21 19:17:39,141 INFO L857 garLoopResultBuilder]: For program point L6955(lines 6955 6957) no Hoare annotation was computed. [2021-10-21 19:17:39,141 INFO L857 garLoopResultBuilder]: For program point L10126(lines 10126 10128) no Hoare annotation was computed. [2021-10-21 19:17:39,142 INFO L857 garLoopResultBuilder]: For program point L9251(lines 9251 9253) no Hoare annotation was computed. [2021-10-21 19:17:39,142 INFO L853 garLoopResultBuilder]: At program point L6955-3(lines 6954 6958) the Hoare annotation is: (and (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_can_fail_calloc_#res.base| 0) (= |ULTIMATE.start_can_fail_calloc_#res.offset| 0)) [2021-10-21 19:17:39,142 INFO L857 garLoopResultBuilder]: For program point L6955-2(lines 6955 6957) no Hoare annotation was computed. [2021-10-21 19:17:39,148 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:17:39,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:17:39 BoogieIcfgContainer [2021-10-21 19:17:39,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:17:39,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:17:39,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:17:39,169 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:17:39,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:58" (3/4) ... [2021-10-21 19:17:39,172 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:17:39,199 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 188 nodes and edges [2021-10-21 19:17:39,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2021-10-21 19:17:39,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-21 19:17:39,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-21 19:17:39,207 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-21 19:17:39,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 19:17:39,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:17:39,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:17:39,243 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-10-21 19:17:39,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 [2021-10-21 19:17:39,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-10-21 19:17:39,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2021-10-21 19:17:39,246 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 && !(map == 0) [2021-10-21 19:17:39,247 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-10-21 19:17:39,249 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-10-21 19:17:39,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(map == 0) && \result == 0) && \result == 0 [2021-10-21 19:17:40,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:17:40,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:17:40,063 INFO L168 Benchmark]: Toolchain (without parser) took 55849.59 ms. Allocated memory was 111.1 MB in the beginning and 499.1 MB in the end (delta: 388.0 MB). Free memory was 82.2 MB in the beginning and 339.0 MB in the end (delta: -256.8 MB). Peak memory consumption was 355.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,063 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:17:40,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3574.67 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 81.8 MB in the beginning and 81.4 MB in the end (delta: 397.0 kB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 251.43 ms. Allocated memory is still 146.8 MB. Free memory was 81.4 MB in the beginning and 68.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,065 INFO L168 Benchmark]: Boogie Preprocessor took 117.80 ms. Allocated memory is still 146.8 MB. Free memory was 68.8 MB in the beginning and 60.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,065 INFO L168 Benchmark]: RCFGBuilder took 10803.87 ms. Allocated memory was 146.8 MB in the beginning and 346.0 MB in the end (delta: 199.2 MB). Free memory was 59.6 MB in the beginning and 203.7 MB in the end (delta: -144.1 MB). Peak memory consumption was 187.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,065 INFO L168 Benchmark]: TraceAbstraction took 40196.50 ms. Allocated memory was 346.0 MB in the beginning and 499.1 MB in the end (delta: 153.1 MB). Free memory was 202.7 MB in the beginning and 226.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 128.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,066 INFO L168 Benchmark]: Witness Printer took 893.31 ms. Allocated memory is still 499.1 MB. Free memory was 226.8 MB in the beginning and 339.0 MB in the end (delta: -112.2 MB). Peak memory consumption was 112.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:40,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3574.67 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 81.8 MB in the beginning and 81.4 MB in the end (delta: 397.0 kB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 251.43 ms. Allocated memory is still 146.8 MB. Free memory was 81.4 MB in the beginning and 68.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.80 ms. Allocated memory is still 146.8 MB. Free memory was 68.8 MB in the beginning and 60.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10803.87 ms. Allocated memory was 146.8 MB in the beginning and 346.0 MB in the end (delta: 199.2 MB). Free memory was 59.6 MB in the beginning and 203.7 MB in the end (delta: -144.1 MB). Peak memory consumption was 187.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40196.50 ms. Allocated memory was 346.0 MB in the beginning and 499.1 MB in the end (delta: 153.1 MB). Free memory was 202.7 MB in the beginning and 226.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 128.9 MB. Max. memory is 16.1 GB. * Witness Printer took 893.31 ms. Allocated memory is still 499.1 MB. Free memory was 226.8 MB in the beginning and 339.0 MB in the end (delta: -112.2 MB). Peak memory consumption was 112.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 40118.6ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 34.5ms, AutomataDifference: 20073.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 299.5ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2245 SDtfs, 1216 SDslu, 4674 SDs, 0 SdLazy, 410 SolverSat, 37 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 17577.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 666 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1957.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=7, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 187.2ms AutomataMinimizationTime, 18 MinimizatonAttempts, 468 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 50 NumberOfFragments, 153 HoareAnnotationTreeSize, 38 FomulaSimplifications, 196 FormulaSimplificationTreeSizeReduction, 43.1ms HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 246.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1179.7ms SsaConstructionTime, 7568.5ms SatisfiabilityAnalysisTime, 5120.6ms InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 23 NumberOfNonLiveVariables, 24647 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9171]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10017]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10017]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2637]: Loop Invariant Derived loop invariant: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 10119]: Loop Invariant Derived loop invariant: \result + 1 <= 0 && !(map == 0) - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 9260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10006]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6954]: Loop Invariant Derived loop invariant: (!(map == 0) && \result == 0) && \result == 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10006]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9193]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: (mem == 0 && !(map == 0)) && mem == 0 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9220]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:17:40,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dd402-be6e-46e6-9cb3-b69ded740056/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...