./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d891185aeadd8eed64a4f613c1973302c2dde16 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:40:59,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:40:59,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:40:59,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:40:59,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:40:59,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:40:59,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:40:59,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:40:59,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:40:59,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:40:59,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:40:59,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:40:59,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:40:59,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:40:59,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:40:59,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:40:59,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:40:59,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:40:59,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:40:59,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:40:59,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:40:59,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:40:59,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:40:59,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:40:59,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:40:59,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:40:59,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:40:59,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:40:59,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:40:59,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:40:59,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:40:59,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:40:59,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:40:59,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:40:59,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:40:59,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:40:59,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:40:59,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:40:59,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:40:59,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:40:59,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:40:59,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-12-07 18:40:59,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:40:59,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:40:59,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:40:59,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:40:59,432 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:40:59,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:40:59,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:40:59,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:40:59,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:40:59,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:40:59,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:40:59,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:40:59,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:40:59,435 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer 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(__VERIFIER_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 -> 6d891185aeadd8eed64a4f613c1973302c2dde16 [2019-12-07 18:40:59,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:40:59,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:40:59,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:40:59,553 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:40:59,553 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:40:59,554 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2019-12-07 18:40:59,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/data/24a3c8db3/5edf682e15c24da0b85550282e9fb854/FLAG07458ccc2 [2019-12-07 18:41:00,166 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:41:00,166 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2019-12-07 18:41:00,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/data/24a3c8db3/5edf682e15c24da0b85550282e9fb854/FLAG07458ccc2 [2019-12-07 18:41:00,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/data/24a3c8db3/5edf682e15c24da0b85550282e9fb854 [2019-12-07 18:41:00,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:41:00,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:41:00,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:41:00,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:41:00,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:41:00,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:41:00" (1/1) ... [2019-12-07 18:41:00,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a28821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:00, skipping insertion in model container [2019-12-07 18:41:00,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:41:00" (1/1) ... [2019-12-07 18:41:00,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:41:00,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:41:00,947 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2019-12-07 18:41:00,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2019-12-07 18:41:01,644 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,644 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,644 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,645 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,646 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,655 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,656 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,657 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,657 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,659 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,660 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,660 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:01,660 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2019-12-07 18:41:02,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2019-12-07 18:41:02,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2019-12-07 18:41:02,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2019-12-07 18:41:02,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2019-12-07 18:41:02,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2019-12-07 18:41:02,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2019-12-07 18:41:02,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2019-12-07 18:41:02,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2019-12-07 18:41:02,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2019-12-07 18:41:02,201 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2019-12-07 18:41:02,455 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,455 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,471 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,472 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,476 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,477 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,487 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,487 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,488 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,488 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,488 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,489 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,489 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:41:02,532 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:41:02,543 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2019-12-07 18:41:02,543 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2019-12-07 18:41:02,564 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,565 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,565 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,565 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,565 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,569 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,569 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,570 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,570 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,571 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,571 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,571 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,572 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2019-12-07 18:41:02,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2019-12-07 18:41:02,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2019-12-07 18:41:02,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2019-12-07 18:41:02,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2019-12-07 18:41:02,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2019-12-07 18:41:02,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2019-12-07 18:41:02,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2019-12-07 18:41:02,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2019-12-07 18:41:02,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2019-12-07 18:41:02,605 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2019-12-07 18:41:02,657 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,658 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,662 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,663 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,664 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,665 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,670 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,670 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,670 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,671 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,671 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,671 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,671 WARN L1484 CHandler]: Possible shadowing of function index [2019-12-07 18:41:02,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:41:03,395 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:41:03,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03 WrapperNode [2019-12-07 18:41:03,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:41:03,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:41:03,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:41:03,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:41:03,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:41:03,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:41:03,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:41:03,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:41:03,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... [2019-12-07 18:41:03,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:41:03,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:41:03,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:41:03,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:41:03,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:41:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:41:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2019-12-07 18:41:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:41:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:41:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:41:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:41:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 18:41:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:41:10,199 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !true; [2019-12-07 18:41:10,200 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:41:10,200 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 18:41:10,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:41:10 BoogieIcfgContainer [2019-12-07 18:41:10,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:41:10,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:41:10,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:41:10,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:41:10,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:41:00" (1/3) ... [2019-12-07 18:41:10,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630609c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:41:10, skipping insertion in model container [2019-12-07 18:41:10,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:41:03" (2/3) ... [2019-12-07 18:41:10,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630609c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:41:10, skipping insertion in model container [2019-12-07 18:41:10,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:41:10" (3/3) ... [2019-12-07 18:41:10,207 INFO L109 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness.i [2019-12-07 18:41:10,214 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:41:10,219 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 18:41:10,227 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 18:41:10,270 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:41:10,270 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:41:10,271 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:41:10,271 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:41:10,271 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:41:10,271 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:41:10,271 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:41:10,271 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:41:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-12-07 18:41:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:41:10,290 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:10,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:41:10,291 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash -140573536, now seen corresponding path program 1 times [2019-12-07 18:41:10,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:10,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907146295] [2019-12-07 18:41:10,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:10,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907146295] [2019-12-07 18:41:10,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:10,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:10,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297912717] [2019-12-07 18:41:10,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:10,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:10,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:10,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:10,802 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 4 states. [2019-12-07 18:41:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:10,910 INFO L93 Difference]: Finished difference Result 255 states and 328 transitions. [2019-12-07 18:41:10,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:10,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 18:41:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:10,921 INFO L225 Difference]: With dead ends: 255 [2019-12-07 18:41:10,922 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 18:41:10,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:10,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 18:41:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 88. [2019-12-07 18:41:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 18:41:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2019-12-07 18:41:10,955 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 19 [2019-12-07 18:41:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:10,956 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2019-12-07 18:41:10,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2019-12-07 18:41:10,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:41:10,957 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:10,957 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:41:10,957 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:10,958 INFO L82 PathProgramCache]: Analyzing trace with hash 194084858, now seen corresponding path program 1 times [2019-12-07 18:41:10,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:10,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923852708] [2019-12-07 18:41:10,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:11,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923852708] [2019-12-07 18:41:11,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:11,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:11,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150465681] [2019-12-07 18:41:11,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:11,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:11,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:11,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:11,117 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand 4 states. [2019-12-07 18:41:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:11,218 INFO L93 Difference]: Finished difference Result 174 states and 217 transitions. [2019-12-07 18:41:11,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:11,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-12-07 18:41:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:11,220 INFO L225 Difference]: With dead ends: 174 [2019-12-07 18:41:11,220 INFO L226 Difference]: Without dead ends: 161 [2019-12-07 18:41:11,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-12-07 18:41:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 90. [2019-12-07 18:41:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-12-07 18:41:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 113 transitions. [2019-12-07 18:41:11,228 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 113 transitions. Word has length 21 [2019-12-07 18:41:11,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:11,228 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 113 transitions. [2019-12-07 18:41:11,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 113 transitions. [2019-12-07 18:41:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:41:11,229 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:11,229 INFO L410 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] [2019-12-07 18:41:11,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:11,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:11,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1759295231, now seen corresponding path program 1 times [2019-12-07 18:41:11,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:11,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495192760] [2019-12-07 18:41:11,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:11,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495192760] [2019-12-07 18:41:11,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:11,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:11,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095841606] [2019-12-07 18:41:11,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:11,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:11,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:11,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:11,364 INFO L87 Difference]: Start difference. First operand 90 states and 113 transitions. Second operand 4 states. [2019-12-07 18:41:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:11,435 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2019-12-07 18:41:11,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:11,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 18:41:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:11,436 INFO L225 Difference]: With dead ends: 103 [2019-12-07 18:41:11,436 INFO L226 Difference]: Without dead ends: 90 [2019-12-07 18:41:11,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-12-07 18:41:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-12-07 18:41:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 18:41:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2019-12-07 18:41:11,444 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 22 [2019-12-07 18:41:11,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:11,444 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2019-12-07 18:41:11,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2019-12-07 18:41:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 18:41:11,445 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:11,445 INFO L410 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] [2019-12-07 18:41:11,445 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:11,446 INFO L82 PathProgramCache]: Analyzing trace with hash -323481990, now seen corresponding path program 1 times [2019-12-07 18:41:11,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:11,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708838535] [2019-12-07 18:41:11,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:11,507 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:11,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131718392] [2019-12-07 18:41:11,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:12,696 INFO L264 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:41:12,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:12,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708838535] [2019-12-07 18:41:12,734 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:41:12,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131718392] [2019-12-07 18:41:12,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:12,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:41:12,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667790811] [2019-12-07 18:41:12,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:41:12,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:12,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:41:12,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:12,736 INFO L87 Difference]: Start difference. First operand 88 states and 109 transitions. Second operand 5 states. [2019-12-07 18:41:12,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:12,817 INFO L93 Difference]: Finished difference Result 240 states and 293 transitions. [2019-12-07 18:41:12,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:41:12,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 18:41:12,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:12,819 INFO L225 Difference]: With dead ends: 240 [2019-12-07 18:41:12,819 INFO L226 Difference]: Without dead ends: 183 [2019-12-07 18:41:12,820 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:41:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-12-07 18:41:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 91. [2019-12-07 18:41:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:41:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2019-12-07 18:41:12,828 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 29 [2019-12-07 18:41:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:12,828 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2019-12-07 18:41:12,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:41:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2019-12-07 18:41:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 18:41:12,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:12,829 INFO L410 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] [2019-12-07 18:41:13,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:13,030 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:13,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1327135454, now seen corresponding path program 1 times [2019-12-07 18:41:13,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:13,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057607096] [2019-12-07 18:41:13,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:13,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057607096] [2019-12-07 18:41:13,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:13,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:41:13,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451810258] [2019-12-07 18:41:13,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:41:13,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:13,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:41:13,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:41:13,255 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand 7 states. [2019-12-07 18:41:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:20,493 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2019-12-07 18:41:20,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:41:20,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-12-07 18:41:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:20,495 INFO L225 Difference]: With dead ends: 116 [2019-12-07 18:41:20,495 INFO L226 Difference]: Without dead ends: 97 [2019-12-07 18:41:20,495 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:41:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-12-07 18:41:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2019-12-07 18:41:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 18:41:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2019-12-07 18:41:20,499 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 31 [2019-12-07 18:41:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:20,500 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2019-12-07 18:41:20,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:41:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2019-12-07 18:41:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 18:41:20,501 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:20,501 INFO L410 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] [2019-12-07 18:41:20,501 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:20,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1192824480, now seen corresponding path program 1 times [2019-12-07 18:41:20,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:20,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366976093] [2019-12-07 18:41:20,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:20,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366976093] [2019-12-07 18:41:20,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:20,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:20,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814502159] [2019-12-07 18:41:20,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:20,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:20,671 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand 4 states. [2019-12-07 18:41:20,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:20,703 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2019-12-07 18:41:20,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:20,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 18:41:20,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:20,705 INFO L225 Difference]: With dead ends: 115 [2019-12-07 18:41:20,705 INFO L226 Difference]: Without dead ends: 91 [2019-12-07 18:41:20,705 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-12-07 18:41:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-12-07 18:41:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:41:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2019-12-07 18:41:20,711 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 31 [2019-12-07 18:41:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:20,711 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2019-12-07 18:41:20,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2019-12-07 18:41:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 18:41:20,713 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:20,713 INFO L410 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] [2019-12-07 18:41:20,713 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:20,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1692700423, now seen corresponding path program 1 times [2019-12-07 18:41:20,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:20,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098877161] [2019-12-07 18:41:20,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:20,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098877161] [2019-12-07 18:41:20,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:20,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:41:20,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231512299] [2019-12-07 18:41:20,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:41:20,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:20,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:41:20,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:20,946 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand 5 states. [2019-12-07 18:41:28,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:28,175 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2019-12-07 18:41:28,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:41:28,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-07 18:41:28,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:28,176 INFO L225 Difference]: With dead ends: 116 [2019-12-07 18:41:28,176 INFO L226 Difference]: Without dead ends: 96 [2019-12-07 18:41:28,177 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:41:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-12-07 18:41:28,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2019-12-07 18:41:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:41:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2019-12-07 18:41:28,181 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 108 transitions. Word has length 33 [2019-12-07 18:41:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:28,181 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 108 transitions. [2019-12-07 18:41:28,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:41:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2019-12-07 18:41:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 18:41:28,182 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:28,182 INFO L410 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] [2019-12-07 18:41:28,182 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:28,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:28,183 INFO L82 PathProgramCache]: Analyzing trace with hash 779887124, now seen corresponding path program 1 times [2019-12-07 18:41:28,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:28,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110424161] [2019-12-07 18:41:28,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:28,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110424161] [2019-12-07 18:41:28,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:28,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:41:28,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944781485] [2019-12-07 18:41:28,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:41:28,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:28,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:41:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:41:28,371 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. Second operand 7 states. [2019-12-07 18:41:33,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:33,882 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-12-07 18:41:33,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:41:33,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-07 18:41:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:33,883 INFO L225 Difference]: With dead ends: 123 [2019-12-07 18:41:33,883 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 18:41:33,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:41:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 18:41:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-12-07 18:41:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 18:41:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2019-12-07 18:41:33,886 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 34 [2019-12-07 18:41:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:33,887 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2019-12-07 18:41:33,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:41:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2019-12-07 18:41:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-12-07 18:41:33,887 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:33,888 INFO L410 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] [2019-12-07 18:41:33,888 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1555391979, now seen corresponding path program 1 times [2019-12-07 18:41:33,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:33,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723844362] [2019-12-07 18:41:33,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:33,950 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:33,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864510066] [2019-12-07 18:41:33,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:35,095 INFO L264 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:41:35,100 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:35,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723844362] [2019-12-07 18:41:35,119 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:41:35,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864510066] [2019-12-07 18:41:35,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:35,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:35,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895941148] [2019-12-07 18:41:35,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:35,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:35,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:35,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:35,120 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand 4 states. [2019-12-07 18:41:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:35,140 INFO L93 Difference]: Finished difference Result 152 states and 173 transitions. [2019-12-07 18:41:35,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:35,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-12-07 18:41:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:35,141 INFO L225 Difference]: With dead ends: 152 [2019-12-07 18:41:35,141 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 18:41:35,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:35,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 18:41:35,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2019-12-07 18:41:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-12-07 18:41:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2019-12-07 18:41:35,145 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 43 [2019-12-07 18:41:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:35,146 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2019-12-07 18:41:35,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2019-12-07 18:41:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-07 18:41:35,147 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:35,147 INFO L410 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] [2019-12-07 18:41:35,347 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:35,348 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:35,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1914157246, now seen corresponding path program 1 times [2019-12-07 18:41:35,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:35,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109070498] [2019-12-07 18:41:35,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:35,420 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:35,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068646329] [2019-12-07 18:41:35,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:36,646 INFO L264 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:41:36,652 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:36,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109070498] [2019-12-07 18:41:36,676 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:41:36,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068646329] [2019-12-07 18:41:36,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:36,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:41:36,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983057428] [2019-12-07 18:41:36,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:41:36,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:36,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:41:36,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:41:36,678 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 4 states. [2019-12-07 18:41:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:36,760 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2019-12-07 18:41:36,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:41:36,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2019-12-07 18:41:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:36,764 INFO L225 Difference]: With dead ends: 122 [2019-12-07 18:41:36,764 INFO L226 Difference]: Without dead ends: 90 [2019-12-07 18:41:36,765 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-12-07 18:41:36,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-12-07 18:41:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-12-07 18:41:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2019-12-07 18:41:36,768 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 46 [2019-12-07 18:41:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:36,768 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2019-12-07 18:41:36,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:41:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2019-12-07 18:41:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-07 18:41:36,769 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:36,769 INFO L410 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] [2019-12-07 18:41:36,969 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:36,970 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:36,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:36,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1883632917, now seen corresponding path program 1 times [2019-12-07 18:41:36,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:36,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915334558] [2019-12-07 18:41:36,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:37,044 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:37,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608751848] [2019-12-07 18:41:37,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:38,231 INFO L264 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 18:41:38,236 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:38,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915334558] [2019-12-07 18:41:38,272 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:41:38,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608751848] [2019-12-07 18:41:38,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:38,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:41:38,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45603054] [2019-12-07 18:41:38,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:41:38,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:38,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:41:38,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:38,273 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 5 states. [2019-12-07 18:41:38,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:38,313 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2019-12-07 18:41:38,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:41:38,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-12-07 18:41:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:38,314 INFO L225 Difference]: With dead ends: 194 [2019-12-07 18:41:38,314 INFO L226 Difference]: Without dead ends: 161 [2019-12-07 18:41:38,315 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:41:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-12-07 18:41:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 93. [2019-12-07 18:41:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 18:41:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2019-12-07 18:41:38,319 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 52 [2019-12-07 18:41:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:38,319 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2019-12-07 18:41:38,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:41:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2019-12-07 18:41:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-07 18:41:38,320 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:38,320 INFO L410 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] [2019-12-07 18:41:38,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:38,521 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1476885039, now seen corresponding path program 1 times [2019-12-07 18:41:38,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:38,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948989597] [2019-12-07 18:41:38,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:38,561 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:38,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860294487] [2019-12-07 18:41:38,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:41:39,746 INFO L264 TraceCheckSpWp]: Trace formula consists of 2716 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 18:41:39,750 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:39,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948989597] [2019-12-07 18:41:39,783 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:41:39,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860294487] [2019-12-07 18:41:39,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:39,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:41:39,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880979213] [2019-12-07 18:41:39,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:41:39,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:41:39,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:41:39,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:41:39,784 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 5 states. [2019-12-07 18:41:40,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:40,092 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2019-12-07 18:41:40,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:41:40,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-12-07 18:41:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:40,097 INFO L225 Difference]: With dead ends: 126 [2019-12-07 18:41:40,097 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 18:41:40,097 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:41:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 18:41:40,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-12-07 18:41:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 18:41:40,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-12-07 18:41:40,100 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 54 [2019-12-07 18:41:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:40,100 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-12-07 18:41:40,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:41:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-12-07 18:41:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 18:41:40,101 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:40,101 INFO L410 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] [2019-12-07 18:41:40,301 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:41:40,302 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:40,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1927581926, now seen corresponding path program 1 times [2019-12-07 18:41:40,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:41:40,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218446125] [2019-12-07 18:41:40,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:41:40,343 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:41:40,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486030670] [2019-12-07 18:41:40,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:27,898 INFO L264 TraceCheckSpWp]: Trace formula consists of 2811 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:46:27,901 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:27,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218446125] [2019-12-07 18:46:27,915 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:46:27,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486030670] [2019-12-07 18:46:27,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:27,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:46:27,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990756308] [2019-12-07 18:46:27,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:46:27,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:27,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:46:27,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:46:27,916 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 4 states. [2019-12-07 18:46:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:27,973 INFO L93 Difference]: Finished difference Result 247 states and 272 transitions. [2019-12-07 18:46:27,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:46:27,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2019-12-07 18:46:27,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:46:27,975 INFO L225 Difference]: With dead ends: 247 [2019-12-07 18:46:27,975 INFO L226 Difference]: Without dead ends: 170 [2019-12-07 18:46:27,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:27,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-12-07 18:46:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 91. [2019-12-07 18:46:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:46:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2019-12-07 18:46:27,981 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 58 [2019-12-07 18:46:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:46:27,981 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2019-12-07 18:46:27,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:46:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2019-12-07 18:46:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 18:46:27,982 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:46:27,982 INFO L410 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] [2019-12-07 18:46:28,182 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:28,183 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:46:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:28,183 INFO L82 PathProgramCache]: Analyzing trace with hash -980599960, now seen corresponding path program 1 times [2019-12-07 18:46:28,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:28,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9963899] [2019-12-07 18:46:28,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:28,248 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:46:28,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249989098] [2019-12-07 18:46:28,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:29,495 INFO L264 TraceCheckSpWp]: Trace formula consists of 2809 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:46:29,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:29,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:29,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9963899] [2019-12-07 18:46:29,517 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:46:29,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249989098] [2019-12-07 18:46:29,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:29,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:46:29,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795507194] [2019-12-07 18:46:29,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:46:29,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:29,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:46:29,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:46:29,518 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand 4 states. [2019-12-07 18:46:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:29,573 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2019-12-07 18:46:29,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:46:29,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2019-12-07 18:46:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:46:29,574 INFO L225 Difference]: With dead ends: 166 [2019-12-07 18:46:29,574 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 18:46:29,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 18:46:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2019-12-07 18:46:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-12-07 18:46:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-12-07 18:46:29,578 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 58 [2019-12-07 18:46:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:46:29,578 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-12-07 18:46:29,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:46:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-12-07 18:46:29,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-12-07 18:46:29,579 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:46:29,579 INFO L410 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] [2019-12-07 18:46:29,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:29,780 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:46:29,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:29,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1094924031, now seen corresponding path program 1 times [2019-12-07 18:46:29,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:29,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935687199] [2019-12-07 18:46:29,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:29,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935687199] [2019-12-07 18:46:29,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:29,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:46:29,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298086309] [2019-12-07 18:46:29,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:46:29,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:29,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:46:29,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:46:29,914 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 4 states. [2019-12-07 18:46:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:29,995 INFO L93 Difference]: Finished difference Result 159 states and 172 transitions. [2019-12-07 18:46:29,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:46:29,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-12-07 18:46:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:46:29,996 INFO L225 Difference]: With dead ends: 159 [2019-12-07 18:46:29,996 INFO L226 Difference]: Without dead ends: 86 [2019-12-07 18:46:29,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:29,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-12-07 18:46:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-12-07 18:46:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-12-07 18:46:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2019-12-07 18:46:30,002 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 59 [2019-12-07 18:46:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:46:30,002 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2019-12-07 18:46:30,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:46:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2019-12-07 18:46:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-07 18:46:30,002 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:46:30,003 INFO L410 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] [2019-12-07 18:46:30,003 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:46:30,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:30,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1822359975, now seen corresponding path program 1 times [2019-12-07 18:46:30,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:30,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363401979] [2019-12-07 18:46:30,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:30,051 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:46:30,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762782182] [2019-12-07 18:46:30,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:31,235 INFO L264 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:46:31,238 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:31,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363401979] [2019-12-07 18:46:31,262 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:46:31,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762782182] [2019-12-07 18:46:31,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:31,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:46:31,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93038910] [2019-12-07 18:46:31,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:46:31,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:31,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:46:31,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:31,263 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand 5 states. [2019-12-07 18:46:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:31,323 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2019-12-07 18:46:31,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:46:31,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2019-12-07 18:46:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:46:31,324 INFO L225 Difference]: With dead ends: 86 [2019-12-07 18:46:31,324 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:46:31,324 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:46:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:46:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:46:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:46:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:46:31,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-12-07 18:46:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:46:31,325 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:46:31,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:46:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:46:31,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:46:31,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:31,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:46:31,659 INFO L242 CegarLoopResult]: At program point L250(lines 248 251) the Hoare annotation is: false [2019-12-07 18:46:31,659 INFO L242 CegarLoopResult]: At program point L250-1(lines 248 251) the Hoare annotation is: false [2019-12-07 18:46:31,659 INFO L246 CegarLoopResult]: For program point L217(lines 217 219) no Hoare annotation was computed. [2019-12-07 18:46:31,659 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,659 INFO L242 CegarLoopResult]: At program point L250-2(lines 248 251) the Hoare annotation is: false [2019-12-07 18:46:31,659 INFO L246 CegarLoopResult]: For program point L217-1(lines 217 219) no Hoare annotation was computed. [2019-12-07 18:46:31,659 INFO L246 CegarLoopResult]: For program point L10193(lines 10193 10207) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L9252(lines 9228 9253) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_s_update_template_size_#res| 1) 0) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L218-1(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L218-3(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L218-4(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L2514(lines 2510 2515) the Hoare annotation is: false [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L2514-2(lines 2510 2515) the Hoare annotation is: false [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L2514-1(lines 2510 2515) the Hoare annotation is: false [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L7023(lines 7023 7027) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L2630(lines 2626 2634) the Hoare annotation is: false [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L9286(lines 9286 9288) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L9237(lines 9237 9239) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L10080(lines 10080 10084) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point L10080-1(lines 10080 10084) no Hoare annotation was computed. [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L9255(lines 9255 9296) the Hoare annotation is: (<= (+ |ULTIMATE.start_aws_hash_table_init_#res| 1) 0) [2019-12-07 18:46:31,660 INFO L242 CegarLoopResult]: At program point L9224(lines 9206 9225) the Hoare annotation is: (and (= 0 |ULTIMATE.start_s_alloc_state_#res.offset|) (= |ULTIMATE.start_s_alloc_state_#res.base| 0) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base))) [2019-12-07 18:46:31,660 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L256(line 256) the Hoare annotation is: false [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L2651(lines 2651 2654) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L9208(lines 9208 9212) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L9291(lines 9291 9293) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L10183(lines 10183 10185) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L2603-1(lines 2599 2607) the Hoare annotation is: false [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L2603(lines 2599 2607) the Hoare annotation is: false [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L2603-2(lines 2599 2607) the Hoare annotation is: false [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L7030(lines 7030 7032) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L10069(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L10069-2(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L10069-3(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L6964-1(lines 6963 6965) the Hoare annotation is: false [2019-12-07 18:46:31,661 INFO L249 CegarLoopResult]: At program point L6964(lines 6963 6965) the Hoare annotation is: true [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L7030-2(lines 7030 7032) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L246 CegarLoopResult]: For program point L10069-9(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,661 INFO L242 CegarLoopResult]: At program point L2670(lines 2650 2671) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= (+ |ULTIMATE.start_aws_round_up_to_power_of_two_#res| 1) 0) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L10069-10(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L10069-5(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L10069-6(lines 10067 10070) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L10069-7(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993(lines 1983 1994) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993-1(lines 1983 1994) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993-2(lines 1983 1994) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993-3(lines 1983 1994) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993-4(lines 1983 1994) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L10069-12(line 10069) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L1993-5(lines 1983 1994) the Hoare annotation is: (and (= 0 ULTIMATE.start_aws_mem_calloc_~mem~1.base) (= 0 ULTIMATE.start_aws_mem_calloc_~mem~1.offset) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base))) [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L10069-13(lines 10067 10070) the Hoare annotation is: false [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L2555(lines 2555 2556) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L9245(lines 9245 9247) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L9245-2(lines 9245 9247) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L246 CegarLoopResult]: For program point L2655(lines 2655 2657) no Hoare annotation was computed. [2019-12-07 18:46:31,662 INFO L242 CegarLoopResult]: At program point L6999(lines 6997 7000) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L9295-2(line 9295) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L9295-3(line 9295) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L10187(lines 10187 10189) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L10204(lines 10204 10206) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L10204-2(lines 10204 10206) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L7033(lines 7014 7034) the Hoare annotation is: (and (= |ULTIMATE.start_aws_mem_calloc_#res.base| 0) (= |ULTIMATE.start_aws_mem_calloc_#res.offset| 0) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base))) [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L245(lines 243 246) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L2558(lines 2554 2559) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L6968-2(lines 6968 6970) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L6968(lines 6968 6970) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L6968-3(lines 6967 6971) the Hoare annotation is: (and (= 0 |ULTIMATE.start_can_fail_calloc_#res.base|) (= |ULTIMATE.start_can_fail_calloc_#res.offset| 0) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base))) [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L9231-2(lines 9231 9233) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L10123(lines 10078 10125) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L242 CegarLoopResult]: At program point L10123-1(lines 10078 10125) the Hoare annotation is: false [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L9231(lines 9231 9233) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L7398(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L7398-4(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,663 INFO L246 CegarLoopResult]: For program point L7398-3(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L7398-2(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L7398-1(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L7398-5(lines 7398 7400) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 218) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L242 CegarLoopResult]: At program point L6953(lines 6947 6954) the Hoare annotation is: false [2019-12-07 18:46:31,664 INFO L242 CegarLoopResult]: At program point L2643-1(lines 2639 2644) the Hoare annotation is: false [2019-12-07 18:46:31,664 INFO L242 CegarLoopResult]: At program point L2643(lines 2639 2644) the Hoare annotation is: false [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L2511-1(lines 2511 2512) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L2511(lines 2511 2512) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L2511-2(lines 2511 2512) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L242 CegarLoopResult]: At program point L10191(lines 10180 10192) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_hash_table_state_required_bytes_#res| 1) 0) (not (= 0 ULTIMATE.start_aws_hash_table_init_~map.base))) [2019-12-07 18:46:31,664 INFO L246 CegarLoopResult]: For program point L9217(lines 9217 9221) no Hoare annotation was computed. [2019-12-07 18:46:31,664 INFO L249 CegarLoopResult]: At program point L10208(line 10208) the Hoare annotation is: true [2019-12-07 18:46:31,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:46:31 BoogieIcfgContainer [2019-12-07 18:46:31,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:46:31,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:46:31,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:46:31,681 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:46:31,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:41:10" (3/4) ... [2019-12-07 18:46:31,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:46:31,707 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 175 nodes and edges [2019-12-07 18:46:31,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2019-12-07 18:46:31,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2019-12-07 18:46:31,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 18:46:31,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 18:46:31,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:46:31,715 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:46:31,716 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:46:31,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result + 1 <= 0 && \result + 1 <= 0) && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 [2019-12-07 18:46:31,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result + 1 <= 0 && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 [2019-12-07 18:46:31,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result + 1 <= 0 && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 [2019-12-07 18:46:31,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2019-12-07 18:46:31,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 && !(0 == map) [2019-12-07 18:46:31,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 == \result && \result == 0) && !(0 == map) [2019-12-07 18:46:31,741 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && \result == 0) && !(0 == map) [2019-12-07 18:46:31,742 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 == \result && \result == 0) && !(0 == map) [2019-12-07 18:46:32,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1bfa09f4-9877-40a8-a212-a9f4e58d1e67/bin/uautomizer/witness.graphml [2019-12-07 18:46:32,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:46:32,397 INFO L168 Benchmark]: Toolchain (without parser) took 331811.39 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 839.9 MB). Free memory was 934.0 MB in the beginning and 1.2 GB in the end (delta: -233.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,397 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:46:32,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2808.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 226.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,398 INFO L168 Benchmark]: Boogie Preprocessor took 71.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,398 INFO L168 Benchmark]: RCFGBuilder took 6623.21 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 371.2 MB). Free memory was 1.1 GB in the beginning and 793.5 MB in the end (delta: 283.2 MB). Peak memory consumption was 655.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,398 INFO L168 Benchmark]: TraceAbstraction took 321478.36 ms. Allocated memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: 344.5 MB). Free memory was 793.5 MB in the beginning and 1.0 GB in the end (delta: -220.0 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,399 INFO L168 Benchmark]: Witness Printer took 714.69 ms. Allocated memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -46.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -154.3 MB). Peak memory consumption was 275.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:46:32,400 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 2808.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 226.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6623.21 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 371.2 MB). Free memory was 1.1 GB in the beginning and 793.5 MB in the end (delta: 283.2 MB). Peak memory consumption was 655.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 321478.36 ms. Allocated memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: 344.5 MB). Free memory was 793.5 MB in the beginning and 1.0 GB in the end (delta: -220.0 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. * Witness Printer took 714.69 ms. Allocated memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -46.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -154.3 MB). Peak memory consumption was 275.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 218]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 218]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: (0 == mem && 0 == mem) && !(0 == map) - InvariantResult [Line: 6967]: Loop Invariant Derived loop invariant: (0 == \result && \result == 0) && !(0 == map) - InvariantResult [Line: 2599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9228]: Loop Invariant Derived loop invariant: ((\result + 1 <= 0 && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 - InvariantResult [Line: 2599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6997]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2554]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: ((\result + 1 <= 0 && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 - InvariantResult [Line: 2510]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10067]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2510]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2510]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1983]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2650]: Loop Invariant Derived loop invariant: (((\result + 1 <= 0 && \result + 1 <= 0) && 2 <= n % 4294967296) && !(0 == map)) && 2 <= min_size % 4294967296 - InvariantResult [Line: 10078]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10078]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7014]: Loop Invariant Derived loop invariant: (\result == 0 && \result == 0) && !(0 == map) - InvariantResult [Line: 9295]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2639]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10180]: Loop Invariant Derived loop invariant: \result + 1 <= 0 && !(0 == map) - InvariantResult [Line: 243]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10067]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2639]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9206]: Loop Invariant Derived loop invariant: (0 == \result && \result == 0) && !(0 == map) - InvariantResult [Line: 6947]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6963]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6963]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9255]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 2 error locations. Result: SAFE, OverallTime: 321.2s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 1627 SDtfs, 1022 SDslu, 3561 SDs, 0 SdLazy, 376 SolverSat, 29 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 19.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 404 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 50 NumberOfFragments, 153 HoareAnnotationTreeSize, 38 FomulaSimplifications, 149 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 294.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 651 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 40591 SizeOfPredicates, 25 NumberOfNonLiveVariables, 21545 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...