./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 54564ff11c4d345dbb32c828a7aa38393a50cdf2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:25:25,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:25:25,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:25:25,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:25:25,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:25:25,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:25:25,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:25:25,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:25:25,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:25:25,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:25:25,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:25:25,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:25:25,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:25:25,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:25:25,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:25:25,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:25:25,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:25:25,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:25:25,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:25:25,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:25:25,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:25:25,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:25:25,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:25:25,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:25:25,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:25:25,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:25:25,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:25:25,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:25:25,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:25:25,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:25:25,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:25:25,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:25:25,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:25:25,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:25:25,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:25:25,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:25:25,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:25:25,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:25:25,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:25:25,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:25:25,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:25:25,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-13 00:25:25,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:25:25,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:25:25,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:25:25,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:25:25,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:25:25,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:25:25,439 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:25:25,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:25:25,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:25:25,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:25:25,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:25:25,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:25:25,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:25:25,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:25:25,441 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:25:25,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:25:25,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:25:25,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:25:25,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:25:25,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:25:25,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:25:25,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:25:25,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:25:25,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:25:25,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:25:25,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:25:25,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:25:25,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54564ff11c4d345dbb32c828a7aa38393a50cdf2 [2021-10-13 00:25:25,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:25:25,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:25:25,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:25:25,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:25:25,804 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:25:25,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-10-13 00:25:25,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/data/6994f8958/263d0992dd5e4875a77e03015aebf25a/FLAG639e9f6ad [2021-10-13 00:25:27,001 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:25:27,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2021-10-13 00:25:27,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/data/6994f8958/263d0992dd5e4875a77e03015aebf25a/FLAG639e9f6ad [2021-10-13 00:25:27,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/data/6994f8958/263d0992dd5e4875a77e03015aebf25a [2021-10-13 00:25:27,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:25:27,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:25:27,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:27,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:25:27,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:25:27,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:27" (1/1) ... [2021-10-13 00:25:27,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c59ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:27, skipping insertion in model container [2021-10-13 00:25:27,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:27" (1/1) ... [2021-10-13 00:25:27,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:25:27,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:25:27,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-10-13 00:25:27,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-10-13 00:25:27,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-13 00:25:27,989 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-13 00:25:29,342 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,343 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,344 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,345 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,346 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,362 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,363 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,365 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,366 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,368 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,370 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,371 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:29,371 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-13 00:25:30,021 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-13 00:25:30,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-13 00:25:30,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-13 00:25:30,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-13 00:25:30,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-13 00:25:30,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-13 00:25:30,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-13 00:25:30,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-13 00:25:30,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-13 00:25:30,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-13 00:25:30,746 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,746 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,774 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,775 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,782 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,782 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,800 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,801 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,802 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,802 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,802 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,803 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,803 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:30,898 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:25:30,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4503,4516] [2021-10-13 00:25:30,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i[4563,4576] [2021-10-13 00:25:30,935 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-13 00:25:30,937 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-13 00:25:30,973 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,973 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,974 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,974 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:30,975 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,037 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,039 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,040 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,040 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,042 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,043 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,043 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,043 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,147 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-13 00:25:31,156 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-13 00:25:31,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-13 00:25:31,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-13 00:25:31,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-13 00:25:31,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-13 00:25:31,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-13 00:25:31,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-13 00:25:31,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-13 00:25:31,176 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-13 00:25:31,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-13 00:25:31,361 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,362 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,371 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,373 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,376 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,377 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,396 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,397 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,397 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,398 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,398 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,399 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,400 WARN L1507 CHandler]: Possible shadowing of function index [2021-10-13 00:25:31,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:31,746 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:25:31,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31 WrapperNode [2021-10-13 00:25:31,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:31,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:25:31,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:25:31,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:25:31,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:31,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:25:32,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:25:32,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:25:32,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:25:32,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:25:32,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:25:32,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:25:32,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:25:32,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (1/1) ... [2021-10-13 00:25:32,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:25:32,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:32,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:32,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:25:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 00:25:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:25:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:25:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:25:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:25:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:25:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-10-13 00:25:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:25:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:25:43,869 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !true; [2021-10-13 00:25:43,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:25:43,878 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-13 00:25:43,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:43 BoogieIcfgContainer [2021-10-13 00:25:43,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:25:43,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:25:43,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:25:43,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:25:43,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:25:27" (1/3) ... [2021-10-13 00:25:43,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1a28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:25:43, skipping insertion in model container [2021-10-13 00:25:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:31" (2/3) ... [2021-10-13 00:25:43,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1a28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:25:43, skipping insertion in model container [2021-10-13 00:25:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:43" (3/3) ... [2021-10-13 00:25:43,895 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness.i [2021-10-13 00:25:43,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:25:43,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 00:25:43,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:25:43,994 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:25:43,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 00:25:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:25:44,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:44,037 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:44,037 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:44,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1956444402, now seen corresponding path program 1 times [2021-10-13 00:25:44,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:44,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332601008] [2021-10-13 00:25:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:44,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:44,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:44,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332601008] [2021-10-13 00:25:44,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332601008] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:44,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:44,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:25:44,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003180839] [2021-10-13 00:25:44,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:25:44,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:25:44,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:25:44,995 INFO L87 Difference]: Start difference. First operand has 113 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 112 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:45,028 INFO L93 Difference]: Finished difference Result 221 states and 294 transitions. [2021-10-13 00:25:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:25:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-13 00:25:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:45,040 INFO L225 Difference]: With dead ends: 221 [2021-10-13 00:25:45,040 INFO L226 Difference]: Without dead ends: 106 [2021-10-13 00:25:45,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:25:45,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-13 00:25:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-13 00:25:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 105 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2021-10-13 00:25:45,089 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 31 [2021-10-13 00:25:45,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:45,090 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2021-10-13 00:25:45,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2021-10-13 00:25:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:25:45,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:45,092 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:45,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:25:45,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:45,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:45,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1279980632, now seen corresponding path program 1 times [2021-10-13 00:25:45,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:45,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729889092] [2021-10-13 00:25:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:45,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:45,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:45,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729889092] [2021-10-13 00:25:45,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729889092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:45,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:45,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:25:45,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65050790] [2021-10-13 00:25:45,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:25:45,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:45,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:25:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:25:45,508 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:45,713 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2021-10-13 00:25:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:25:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-13 00:25:45,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:45,718 INFO L225 Difference]: With dead ends: 272 [2021-10-13 00:25:45,719 INFO L226 Difference]: Without dead ends: 191 [2021-10-13 00:25:45,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:45,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-10-13 00:25:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 108. [2021-10-13 00:25:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 107 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2021-10-13 00:25:45,738 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 31 [2021-10-13 00:25:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:45,739 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2021-10-13 00:25:45,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2021-10-13 00:25:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 00:25:45,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:45,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:45,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:25:45,742 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:45,743 INFO L82 PathProgramCache]: Analyzing trace with hash 422969666, now seen corresponding path program 1 times [2021-10-13 00:25:45,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:45,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682725566] [2021-10-13 00:25:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:45,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:46,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:46,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682725566] [2021-10-13 00:25:46,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682725566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:46,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:46,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:25:46,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132396101] [2021-10-13 00:25:46,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:25:46,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:25:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:25:46,249 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:46,382 INFO L93 Difference]: Finished difference Result 202 states and 245 transitions. [2021-10-13 00:25:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:25:46,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 00:25:46,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:46,390 INFO L225 Difference]: With dead ends: 202 [2021-10-13 00:25:46,393 INFO L226 Difference]: Without dead ends: 189 [2021-10-13 00:25:46,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-10-13 00:25:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 110. [2021-10-13 00:25:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2314814814814814) internal successors, (133), 109 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2021-10-13 00:25:46,413 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 33 [2021-10-13 00:25:46,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:46,414 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2021-10-13 00:25:46,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2021-10-13 00:25:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:25:46,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:46,421 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:46,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:25:46,421 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1472200601, now seen corresponding path program 1 times [2021-10-13 00:25:46,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:46,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452513872] [2021-10-13 00:25:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:46,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:46,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:46,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452513872] [2021-10-13 00:25:46,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452513872] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:46,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:46,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:25:46,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705758436] [2021-10-13 00:25:46,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:25:46,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:46,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:25:46,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:25:46,809 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:46,876 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2021-10-13 00:25:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:25:46,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-13 00:25:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:46,879 INFO L225 Difference]: With dead ends: 123 [2021-10-13 00:25:46,879 INFO L226 Difference]: Without dead ends: 110 [2021-10-13 00:25:46,880 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-13 00:25:46,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-10-13 00:25:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 107 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-10-13 00:25:46,899 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 34 [2021-10-13 00:25:46,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:46,900 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-13 00:25:46,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:46,900 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-10-13 00:25:46,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 00:25:46,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:46,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:46,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:25:46,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1643067430, now seen corresponding path program 1 times [2021-10-13 00:25:46,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:46,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620891489] [2021-10-13 00:25:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:46,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:47,060 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:25:47,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886552512] [2021-10-13 00:25:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:47,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:47,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:25:47,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:25:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:48,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:25:48,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:48,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:48,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620891489] [2021-10-13 00:25:48,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:25:48,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886552512] [2021-10-13 00:25:48,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886552512] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:48,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:48,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:25:48,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427240729] [2021-10-13 00:25:48,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:25:48,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:25:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:48,705 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:48,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:48,905 INFO L93 Difference]: Finished difference Result 240 states and 286 transitions. [2021-10-13 00:25:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:25:48,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-13 00:25:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:48,909 INFO L225 Difference]: With dead ends: 240 [2021-10-13 00:25:48,909 INFO L226 Difference]: Without dead ends: 175 [2021-10-13 00:25:48,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:25:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-13 00:25:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 111. [2021-10-13 00:25:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-10-13 00:25:48,925 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 41 [2021-10-13 00:25:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:48,925 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-10-13 00:25:48,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:48,926 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-10-13 00:25:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 00:25:48,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:48,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:48,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:49,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:49,136 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:49,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:49,137 INFO L82 PathProgramCache]: Analyzing trace with hash 851201738, now seen corresponding path program 1 times [2021-10-13 00:25:49,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:49,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267007182] [2021-10-13 00:25:49,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:49,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:49,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:49,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:49,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267007182] [2021-10-13 00:25:49,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267007182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:49,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:49,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:25:49,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951742635] [2021-10-13 00:25:49,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:25:49,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:49,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:25:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:25:49,907 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:50,010 INFO L93 Difference]: Finished difference Result 292 states and 350 transitions. [2021-10-13 00:25:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:25:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-13 00:25:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:50,013 INFO L225 Difference]: With dead ends: 292 [2021-10-13 00:25:50,013 INFO L226 Difference]: Without dead ends: 204 [2021-10-13 00:25:50,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-13 00:25:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 114. [2021-10-13 00:25:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-10-13 00:25:50,024 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 43 [2021-10-13 00:25:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:50,024 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-10-13 00:25:50,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-10-13 00:25:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 00:25:50,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:50,026 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:50,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:25:50,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash 341728648, now seen corresponding path program 1 times [2021-10-13 00:25:50,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:50,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243193979] [2021-10-13 00:25:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:50,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:50,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:50,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:50,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243193979] [2021-10-13 00:25:50,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243193979] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:50,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:50,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:25:50,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171504597] [2021-10-13 00:25:50,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:25:50,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:50,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:25:50,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:25:50,680 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:58,718 INFO L93 Difference]: Finished difference Result 139 states and 164 transitions. [2021-10-13 00:25:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:25:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-13 00:25:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:58,720 INFO L225 Difference]: With dead ends: 139 [2021-10-13 00:25:58,720 INFO L226 Difference]: Without dead ends: 120 [2021-10-13 00:25:58,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 421.5ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:25:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-13 00:25:58,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2021-10-13 00:25:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 115 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2021-10-13 00:25:58,729 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 43 [2021-10-13 00:25:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:58,730 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2021-10-13 00:25:58,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2021-10-13 00:25:58,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 00:25:58,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:58,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:58,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:25:58,732 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:58,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:58,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2116736010, now seen corresponding path program 1 times [2021-10-13 00:25:58,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:58,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073787485] [2021-10-13 00:25:58,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:58,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:59,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:59,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073787485] [2021-10-13 00:25:59,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073787485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:59,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:25:59,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424125436] [2021-10-13 00:25:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:25:59,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:25:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:25:59,056 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:59,126 INFO L93 Difference]: Finished difference Result 138 states and 162 transitions. [2021-10-13 00:25:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:25:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-13 00:25:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:59,128 INFO L225 Difference]: With dead ends: 138 [2021-10-13 00:25:59,129 INFO L226 Difference]: Without dead ends: 114 [2021-10-13 00:25:59,129 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-13 00:25:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-13 00:25:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1875) internal successors, (133), 113 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2021-10-13 00:25:59,136 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 43 [2021-10-13 00:25:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:59,137 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2021-10-13 00:25:59,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2021-10-13 00:25:59,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 00:25:59,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:59,138 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:59,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:25:59,139 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:25:59,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:59,140 INFO L82 PathProgramCache]: Analyzing trace with hash 519133667, now seen corresponding path program 1 times [2021-10-13 00:25:59,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:59,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956668327] [2021-10-13 00:25:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:59,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:59,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:59,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956668327] [2021-10-13 00:25:59,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956668327] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:59,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:59,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:25:59,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891476293] [2021-10-13 00:25:59,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:25:59,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:25:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:25:59,583 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:05,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:05,312 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2021-10-13 00:26:05,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:26:05,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-13 00:26:05,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:05,314 INFO L225 Difference]: With dead ends: 135 [2021-10-13 00:26:05,315 INFO L226 Difference]: Without dead ends: 115 [2021-10-13 00:26:05,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 271.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:26:05,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-13 00:26:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-10-13 00:26:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 113 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2021-10-13 00:26:05,322 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 45 [2021-10-13 00:26:05,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:05,322 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2021-10-13 00:26:05,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2021-10-13 00:26:05,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 00:26:05,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:05,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:05,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:26:05,325 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:05,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:05,325 INFO L82 PathProgramCache]: Analyzing trace with hash 627267248, now seen corresponding path program 1 times [2021-10-13 00:26:05,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:05,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087469621] [2021-10-13 00:26:05,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:05,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:06,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:06,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087469621] [2021-10-13 00:26:06,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087469621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:06,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:06,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:26:06,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778014145] [2021-10-13 00:26:06,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:26:06,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:06,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:26:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:26:06,211 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:11,640 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2021-10-13 00:26:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:26:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 00:26:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:11,642 INFO L225 Difference]: With dead ends: 146 [2021-10-13 00:26:11,642 INFO L226 Difference]: Without dead ends: 118 [2021-10-13 00:26:11,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 358.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:26:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-13 00:26:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2021-10-13 00:26:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 115 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2021-10-13 00:26:11,650 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 46 [2021-10-13 00:26:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:11,651 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2021-10-13 00:26:11,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2021-10-13 00:26:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-13 00:26:11,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:11,652 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:11,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:26:11,653 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash 600005105, now seen corresponding path program 1 times [2021-10-13 00:26:11,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:11,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352168646] [2021-10-13 00:26:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:11,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:11,782 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:11,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185150698] [2021-10-13 00:26:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:11,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:11,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:11,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:26:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:12,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:26:13,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:13,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:13,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352168646] [2021-10-13 00:26:13,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:13,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185150698] [2021-10-13 00:26:13,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185150698] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:13,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:13,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:26:13,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941930335] [2021-10-13 00:26:13,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:26:13,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:13,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:26:13,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:26:13,304 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:13,370 INFO L93 Difference]: Finished difference Result 183 states and 204 transitions. [2021-10-13 00:26:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:26:13,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-10-13 00:26:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:13,373 INFO L225 Difference]: With dead ends: 183 [2021-10-13 00:26:13,374 INFO L226 Difference]: Without dead ends: 116 [2021-10-13 00:26:13,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-13 00:26:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2021-10-13 00:26:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.135135135135135) internal successors, (126), 112 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2021-10-13 00:26:13,381 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 59 [2021-10-13 00:26:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:13,382 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2021-10-13 00:26:13,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:13,388 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2021-10-13 00:26:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-13 00:26:13,394 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:13,394 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:13,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:13,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 00:26:13,595 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:13,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:13,596 INFO L82 PathProgramCache]: Analyzing trace with hash -551778192, now seen corresponding path program 1 times [2021-10-13 00:26:13,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:13,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21847579] [2021-10-13 00:26:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:13,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:13,716 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:13,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19478231] [2021-10-13 00:26:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:13,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:13,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:13,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:13,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:26:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:14,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:26:15,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:15,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:15,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:15,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21847579] [2021-10-13 00:26:15,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:15,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19478231] [2021-10-13 00:26:15,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19478231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:15,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:15,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:26:15,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025011496] [2021-10-13 00:26:15,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:15,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:15,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:15,285 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:15,454 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2021-10-13 00:26:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-10-13 00:26:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:15,466 INFO L225 Difference]: With dead ends: 214 [2021-10-13 00:26:15,466 INFO L226 Difference]: Without dead ends: 182 [2021-10-13 00:26:15,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:26:15,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-13 00:26:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 116. [2021-10-13 00:26:15,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.131578947368421) internal successors, (129), 115 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 129 transitions. [2021-10-13 00:26:15,475 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 129 transitions. Word has length 62 [2021-10-13 00:26:15,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:15,476 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 129 transitions. [2021-10-13 00:26:15,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:15,476 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 129 transitions. [2021-10-13 00:26:15,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-13 00:26:15,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:15,477 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:15,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:15,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:15,692 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:15,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:15,693 INFO L82 PathProgramCache]: Analyzing trace with hash -402269396, now seen corresponding path program 1 times [2021-10-13 00:26:15,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:15,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59598442] [2021-10-13 00:26:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:15,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:15,828 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:15,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143528081] [2021-10-13 00:26:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:15,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:15,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:15,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:26:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:16,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2727 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:26:16,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:17,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:17,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59598442] [2021-10-13 00:26:17,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:17,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143528081] [2021-10-13 00:26:17,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143528081] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:17,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:17,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:26:17,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717966234] [2021-10-13 00:26:17,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:26:17,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:17,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:26:17,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:26:17,236 INFO L87 Difference]: Start difference. First operand 116 states and 129 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:17,938 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2021-10-13 00:26:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:26:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-13 00:26:17,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:17,956 INFO L225 Difference]: With dead ends: 148 [2021-10-13 00:26:17,956 INFO L226 Difference]: Without dead ends: 116 [2021-10-13 00:26:17,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:17,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-13 00:26:17,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2021-10-13 00:26:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.1261261261261262) internal successors, (125), 112 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2021-10-13 00:26:17,964 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 64 [2021-10-13 00:26:17,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:17,964 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2021-10-13 00:26:17,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2021-10-13 00:26:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 00:26:17,966 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:17,966 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:18,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:18,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:26:18,167 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash 478157639, now seen corresponding path program 1 times [2021-10-13 00:26:18,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:18,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023406684] [2021-10-13 00:26:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:18,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:18,279 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:18,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208870356] [2021-10-13 00:26:18,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:18,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:18,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:18,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 00:26:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:19,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:26:19,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:19,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:19,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023406684] [2021-10-13 00:26:19,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:19,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208870356] [2021-10-13 00:26:19,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208870356] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:19,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:19,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:26:19,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900313018] [2021-10-13 00:26:19,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:19,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:19,679 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:19,790 INFO L93 Difference]: Finished difference Result 217 states and 233 transitions. [2021-10-13 00:26:19,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:26:19,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-13 00:26:19,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:19,792 INFO L225 Difference]: With dead ends: 217 [2021-10-13 00:26:19,793 INFO L226 Difference]: Without dead ends: 184 [2021-10-13 00:26:19,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:26:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-13 00:26:19,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 116. [2021-10-13 00:26:19,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.1228070175438596) internal successors, (128), 115 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2021-10-13 00:26:19,803 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 68 [2021-10-13 00:26:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:19,804 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2021-10-13 00:26:19,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2021-10-13 00:26:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-13 00:26:19,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:19,805 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:19,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:20,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:20,032 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:20,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:20,032 INFO L82 PathProgramCache]: Analyzing trace with hash 776073283, now seen corresponding path program 1 times [2021-10-13 00:26:20,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:20,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621695029] [2021-10-13 00:26:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:20,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:20,196 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:20,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997189521] [2021-10-13 00:26:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:20,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:20,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:20,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:20,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 00:26:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:21,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:26:21,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:21,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:21,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621695029] [2021-10-13 00:26:21,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:21,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997189521] [2021-10-13 00:26:21,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997189521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:21,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:21,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:26:21,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259550498] [2021-10-13 00:26:21,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:21,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:21,595 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:21,976 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2021-10-13 00:26:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:21,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-13 00:26:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:21,985 INFO L225 Difference]: With dead ends: 149 [2021-10-13 00:26:21,985 INFO L226 Difference]: Without dead ends: 111 [2021-10-13 00:26:21,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 125.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:26:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-10-13 00:26:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-10-13 00:26:21,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.110091743119266) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2021-10-13 00:26:21,994 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 70 [2021-10-13 00:26:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:21,995 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2021-10-13 00:26:21,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2021-10-13 00:26:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-13 00:26:21,996 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:21,996 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:22,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:22,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 00:26:22,204 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:22,205 INFO L82 PathProgramCache]: Analyzing trace with hash -776040076, now seen corresponding path program 1 times [2021-10-13 00:26:22,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:22,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287927783] [2021-10-13 00:26:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:22,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:22,324 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:22,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263921915] [2021-10-13 00:26:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:22,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:22,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:22,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:22,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 00:26:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:23,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:26:23,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:23,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:23,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287927783] [2021-10-13 00:26:23,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:23,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263921915] [2021-10-13 00:26:23,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263921915] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:23,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:23,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:26:23,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558515907] [2021-10-13 00:26:23,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:26:23,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:26:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:26:23,818 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:23,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:23,926 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2021-10-13 00:26:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:26:23,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-10-13 00:26:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:23,929 INFO L225 Difference]: With dead ends: 194 [2021-10-13 00:26:23,929 INFO L226 Difference]: Without dead ends: 109 [2021-10-13 00:26:23,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-13 00:26:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-10-13 00:26:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0961538461538463) internal successors, (114), 105 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2021-10-13 00:26:23,938 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 78 [2021-10-13 00:26:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:23,939 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2021-10-13 00:26:23,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2021-10-13 00:26:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-13 00:26:23,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:23,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:23,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-13 00:26:24,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 00:26:24,156 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:24,157 INFO L82 PathProgramCache]: Analyzing trace with hash -589599749, now seen corresponding path program 1 times [2021-10-13 00:26:24,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:24,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913283053] [2021-10-13 00:26:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:24,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:24,271 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:24,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108093637] [2021-10-13 00:26:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:24,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:24,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:24,273 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:24,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 00:26:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:25,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:26:25,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:25,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:25,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913283053] [2021-10-13 00:26:25,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:25,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108093637] [2021-10-13 00:26:25,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108093637] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:25,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:25,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:26:25,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565395949] [2021-10-13 00:26:25,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:26:25,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:26:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:26:25,658 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:25,733 INFO L93 Difference]: Finished difference Result 187 states and 200 transitions. [2021-10-13 00:26:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:26:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-10-13 00:26:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:25,745 INFO L225 Difference]: With dead ends: 187 [2021-10-13 00:26:25,746 INFO L226 Difference]: Without dead ends: 106 [2021-10-13 00:26:25,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:25,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-13 00:26:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-13 00:26:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 105 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2021-10-13 00:26:25,755 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 79 [2021-10-13 00:26:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:25,755 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2021-10-13 00:26:25,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:25,756 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2021-10-13 00:26:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-13 00:26:25,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:25,757 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:25,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:25,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-13 00:26:25,970 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:26:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:25,970 INFO L82 PathProgramCache]: Analyzing trace with hash -658597663, now seen corresponding path program 1 times [2021-10-13 00:26:25,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:25,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283590796] [2021-10-13 00:26:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:25,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:26,067 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:26:26,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116303151] [2021-10-13 00:26:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:26,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:26:26,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:26,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:26:26,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:26:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:27,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:26:27,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:27,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:27,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283590796] [2021-10-13 00:26:27,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:26:27,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116303151] [2021-10-13 00:26:27,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116303151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:27,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:27,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:26:27,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306841344] [2021-10-13 00:26:27,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:27,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:27,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:27,548 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:27,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:27,688 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2021-10-13 00:26:27,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:27,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-10-13 00:26:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:27,689 INFO L225 Difference]: With dead ends: 106 [2021-10-13 00:26:27,689 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:26:27,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 96.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:26:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:26:27,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:26:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:26:27,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2021-10-13 00:26:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:27,691 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:26:27,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:26:27,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:26:27,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:26:27,694 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:26:27,694 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:26:27,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:27,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 00:26:27,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:26:27,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:27,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:26:28,235 INFO L857 garLoopResultBuilder]: For program point L10143-2(lines 10143 10145) no Hoare annotation was computed. [2021-10-13 00:26:28,235 INFO L857 garLoopResultBuilder]: For program point L10143(lines 10143 10145) no Hoare annotation was computed. [2021-10-13 00:26:28,235 INFO L853 garLoopResultBuilder]: At program point L250(lines 248 251) the Hoare annotation is: false [2021-10-13 00:26:28,235 INFO L857 garLoopResultBuilder]: For program point L7385-3(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L7385-2(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L7385-1(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L9202(lines 9202 9204) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L7385-5(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point L7385-4(lines 7385 7387) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:26:28,236 INFO L853 garLoopResultBuilder]: At program point L6940(lines 6934 6941) the Hoare annotation is: false [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L10062-1(lines 10017 10064) the Hoare annotation is: false [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L10062(lines 10017 10064) the Hoare annotation is: false [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L9220(lines 9220 9261) the Hoare annotation is: (<= (+ |ULTIMATE.start_aws_hash_table_init_#res| 1) 0) [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L2630(lines 2626 2631) the Hoare annotation is: false [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L2630-1(lines 2626 2631) the Hoare annotation is: false [2021-10-13 00:26:28,237 INFO L857 garLoopResultBuilder]: For program point L2498(lines 2498 2499) no Hoare annotation was computed. [2021-10-13 00:26:28,237 INFO L857 garLoopResultBuilder]: For program point L2498-2(lines 2498 2499) no Hoare annotation was computed. [2021-10-13 00:26:28,237 INFO L857 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L10130(lines 10119 10131) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_hash_table_state_required_bytes_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0))) [2021-10-13 00:26:28,237 INFO L853 garLoopResultBuilder]: At program point L9189(lines 9171 9190) the Hoare annotation is: (and (= |ULTIMATE.start_s_alloc_state_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_s_alloc_state_#res.offset| 0)) [2021-10-13 00:26:28,238 INFO L860 garLoopResultBuilder]: At program point L10147(line 10147) the Hoare annotation is: true [2021-10-13 00:26:28,238 INFO L857 garLoopResultBuilder]: For program point L9173(lines 9173 9177) no Hoare annotation was computed. [2021-10-13 00:26:28,238 INFO L853 garLoopResultBuilder]: At program point L2501-1(lines 2497 2502) the Hoare annotation is: false [2021-10-13 00:26:28,238 INFO L857 garLoopResultBuilder]: For program point L7010(lines 7010 7014) no Hoare annotation was computed. [2021-10-13 00:26:28,238 INFO L853 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: false [2021-10-13 00:26:28,238 INFO L857 garLoopResultBuilder]: For program point L9256(lines 9256 9258) no Hoare annotation was computed. [2021-10-13 00:26:28,238 INFO L853 garLoopResultBuilder]: At program point L2501-2(lines 2497 2502) the Hoare annotation is: false [2021-10-13 00:26:28,238 INFO L853 garLoopResultBuilder]: At program point L255(lines 253 256) the Hoare annotation is: false [2021-10-13 00:26:28,238 INFO L853 garLoopResultBuilder]: At program point L255-1(lines 253 256) the Hoare annotation is: false [2021-10-13 00:26:28,238 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L853 garLoopResultBuilder]: At program point L255-2(lines 253 256) the Hoare annotation is: false [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L853 garLoopResultBuilder]: At program point L2617(lines 2613 2621) the Hoare annotation is: false [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L10132(lines 10132 10146) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,239 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,240 INFO L857 garLoopResultBuilder]: For program point L10019(lines 10019 10023) no Hoare annotation was computed. [2021-10-13 00:26:28,240 INFO L857 garLoopResultBuilder]: For program point L10019-1(lines 10019 10023) no Hoare annotation was computed. [2021-10-13 00:26:28,240 INFO L857 garLoopResultBuilder]: For program point L9210(lines 9210 9212) no Hoare annotation was computed. [2021-10-13 00:26:28,240 INFO L857 garLoopResultBuilder]: For program point L9210-2(lines 9210 9212) no Hoare annotation was computed. [2021-10-13 00:26:28,240 INFO L853 garLoopResultBuilder]: At program point L9260-2(line 9260) the Hoare annotation is: false [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point L9260-3(line 9260) no Hoare annotation was computed. [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,241 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,242 INFO L857 garLoopResultBuilder]: For program point L2638(lines 2638 2641) no Hoare annotation was computed. [2021-10-13 00:26:28,242 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,242 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,242 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,242 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,243 INFO L857 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,243 INFO L857 garLoopResultBuilder]: For program point L210-9(lines 210 212) no Hoare annotation was computed. [2021-10-13 00:26:28,243 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,243 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,243 INFO L857 garLoopResultBuilder]: For program point L9196(lines 9196 9198) no Hoare annotation was computed. [2021-10-13 00:26:28,244 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,244 INFO L857 garLoopResultBuilder]: For program point L9196-2(lines 9196 9198) no Hoare annotation was computed. [2021-10-13 00:26:28,244 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,244 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,244 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,245 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,245 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,245 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-10-13 00:26:28,245 INFO L857 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,245 INFO L857 garLoopResultBuilder]: For program point L211-18(line 211) no Hoare annotation was computed. [2021-10-13 00:26:28,246 INFO L853 garLoopResultBuilder]: At program point L2590(lines 2586 2594) the Hoare annotation is: false [2021-10-13 00:26:28,246 INFO L853 garLoopResultBuilder]: At program point L2590-2(lines 2586 2594) the Hoare annotation is: false [2021-10-13 00:26:28,246 INFO L853 garLoopResultBuilder]: At program point L2590-1(lines 2586 2594) the Hoare annotation is: false [2021-10-13 00:26:28,246 INFO L857 garLoopResultBuilder]: For program point L10122(lines 10122 10124) no Hoare annotation was computed. [2021-10-13 00:26:28,246 INFO L853 garLoopResultBuilder]: At program point L6951-1(lines 6950 6952) the Hoare annotation is: false [2021-10-13 00:26:28,247 INFO L860 garLoopResultBuilder]: At program point L6951(lines 6950 6952) the Hoare annotation is: true [2021-10-13 00:26:28,247 INFO L857 garLoopResultBuilder]: For program point L7017-2(lines 7017 7019) no Hoare annotation was computed. [2021-10-13 00:26:28,247 INFO L857 garLoopResultBuilder]: For program point L7017(lines 7017 7019) no Hoare annotation was computed. [2021-10-13 00:26:28,247 INFO L853 garLoopResultBuilder]: At program point L2657(lines 2637 2658) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (<= (+ |ULTIMATE.start_aws_round_up_to_power_of_two_#res| 1) 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-10-13 00:26:28,247 INFO L857 garLoopResultBuilder]: For program point L2542(lines 2542 2543) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point L9182(lines 9182 9186) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point L10008-3(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-13 00:26:28,248 INFO L857 garLoopResultBuilder]: For program point L10008-5(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,249 INFO L853 garLoopResultBuilder]: At program point L10008-6(lines 10006 10009) the Hoare annotation is: false [2021-10-13 00:26:28,249 INFO L857 garLoopResultBuilder]: For program point L10008(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,249 INFO L857 garLoopResultBuilder]: For program point L2642(lines 2642 2644) no Hoare annotation was computed. [2021-10-13 00:26:28,249 INFO L857 garLoopResultBuilder]: For program point L10008-2(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,249 INFO L857 garLoopResultBuilder]: For program point L10008-12(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,249 INFO L853 garLoopResultBuilder]: At program point L10008-13(lines 10006 10009) the Hoare annotation is: false [2021-10-13 00:26:28,249 INFO L853 garLoopResultBuilder]: At program point L1998(lines 1988 1999) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296))) [2021-10-13 00:26:28,249 INFO L853 garLoopResultBuilder]: At program point L1998-1(lines 1988 1999) the Hoare annotation is: false [2021-10-13 00:26:28,250 INFO L853 garLoopResultBuilder]: At program point L6986(lines 6984 6987) the Hoare annotation is: false [2021-10-13 00:26:28,250 INFO L857 garLoopResultBuilder]: For program point L10008-7(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,250 INFO L853 garLoopResultBuilder]: At program point L1998-2(lines 1988 1999) the Hoare annotation is: false [2021-10-13 00:26:28,250 INFO L853 garLoopResultBuilder]: At program point L1998-3(lines 1988 1999) the Hoare annotation is: false [2021-10-13 00:26:28,250 INFO L857 garLoopResultBuilder]: For program point L10008-9(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,250 INFO L853 garLoopResultBuilder]: At program point L1998-4(lines 1988 1999) the Hoare annotation is: false [2021-10-13 00:26:28,250 INFO L857 garLoopResultBuilder]: For program point L10008-10(line 10008) no Hoare annotation was computed. [2021-10-13 00:26:28,250 INFO L853 garLoopResultBuilder]: At program point L1998-5(lines 1988 1999) the Hoare annotation is: (and (= ULTIMATE.start_aws_mem_calloc_~mem~1.offset 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= ULTIMATE.start_aws_mem_calloc_~mem~1.base 0)) [2021-10-13 00:26:28,251 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7001 7021) the Hoare annotation is: (and (= |ULTIMATE.start_aws_mem_calloc_#res.base| 0) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_aws_mem_calloc_#res.offset| 0)) [2021-10-13 00:26:28,251 INFO L853 garLoopResultBuilder]: At program point L9217(lines 9193 9218) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (<= (+ |ULTIMATE.start_s_update_template_size_#res| 1) 0)) [2021-10-13 00:26:28,251 INFO L853 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: false [2021-10-13 00:26:28,251 INFO L857 garLoopResultBuilder]: For program point L6955(lines 6955 6957) no Hoare annotation was computed. [2021-10-13 00:26:28,251 INFO L857 garLoopResultBuilder]: For program point L10126(lines 10126 10128) no Hoare annotation was computed. [2021-10-13 00:26:28,251 INFO L857 garLoopResultBuilder]: For program point L9251(lines 9251 9253) no Hoare annotation was computed. [2021-10-13 00:26:28,251 INFO L853 garLoopResultBuilder]: At program point L6955-3(lines 6954 6958) the Hoare annotation is: (and (not (= ULTIMATE.start_aws_hash_table_init_~map.base 0)) (= |ULTIMATE.start_can_fail_calloc_#res.base| 0) (= |ULTIMATE.start_can_fail_calloc_#res.offset| 0)) [2021-10-13 00:26:28,251 INFO L857 garLoopResultBuilder]: For program point L6955-2(lines 6955 6957) no Hoare annotation was computed. [2021-10-13 00:26:28,256 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:26:28,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:26:28 BoogieIcfgContainer [2021-10-13 00:26:28,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:26:28,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:26:28,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:26:28,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:26:28,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:43" (3/4) ... [2021-10-13 00:26:28,296 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:26:28,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 188 nodes and edges [2021-10-13 00:26:28,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2021-10-13 00:26:28,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-13 00:26:28,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-13 00:26:28,349 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 00:26:28,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 00:26:28,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 00:26:28,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:26:28,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-10-13 00:26:28,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 [2021-10-13 00:26:28,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 [2021-10-13 00:26:28,388 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2021-10-13 00:26:28,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 && !(map == 0) [2021-10-13 00:26:28,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-10-13 00:26:28,393 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && !(map == 0)) && \result == 0 [2021-10-13 00:26:28,394 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(map == 0) && \result == 0) && \result == 0 [2021-10-13 00:26:29,337 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:26:29,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:26:29,339 INFO L168 Benchmark]: Toolchain (without parser) took 62011.62 ms. Allocated memory was 109.1 MB in the beginning and 503.3 MB in the end (delta: 394.3 MB). Free memory was 81.1 MB in the beginning and 289.1 MB in the end (delta: -208.0 MB). Peak memory consumption was 373.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,340 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory was 83.5 MB in the beginning and 83.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:26:29,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4418.69 ms. Allocated memory was 109.1 MB in the beginning and 180.4 MB in the end (delta: 71.3 MB). Free memory was 80.7 MB in the beginning and 90.2 MB in the end (delta: -9.5 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 268.37 ms. Allocated memory is still 180.4 MB. Free memory was 90.2 MB in the beginning and 77.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,341 INFO L168 Benchmark]: Boogie Preprocessor took 131.40 ms. Allocated memory is still 180.4 MB. Free memory was 77.6 MB in the beginning and 116.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,342 INFO L168 Benchmark]: RCFGBuilder took 11733.28 ms. Allocated memory was 180.4 MB in the beginning and 268.4 MB in the end (delta: 88.1 MB). Free memory was 116.5 MB in the beginning and 168.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 166.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,342 INFO L168 Benchmark]: TraceAbstraction took 44404.69 ms. Allocated memory was 268.4 MB in the beginning and 503.3 MB in the end (delta: 234.9 MB). Free memory was 168.9 MB in the beginning and 167.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 237.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,343 INFO L168 Benchmark]: Witness Printer took 1045.56 ms. Allocated memory is still 503.3 MB. Free memory was 167.0 MB in the beginning and 289.1 MB in the end (delta: -122.0 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:26:29,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory was 83.5 MB in the beginning and 83.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4418.69 ms. Allocated memory was 109.1 MB in the beginning and 180.4 MB in the end (delta: 71.3 MB). Free memory was 80.7 MB in the beginning and 90.2 MB in the end (delta: -9.5 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 268.37 ms. Allocated memory is still 180.4 MB. Free memory was 90.2 MB in the beginning and 77.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 131.40 ms. Allocated memory is still 180.4 MB. Free memory was 77.6 MB in the beginning and 116.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11733.28 ms. Allocated memory was 180.4 MB in the beginning and 268.4 MB in the end (delta: 88.1 MB). Free memory was 116.5 MB in the beginning and 168.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 166.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 44404.69 ms. Allocated memory was 268.4 MB in the beginning and 503.3 MB in the end (delta: 234.9 MB). Free memory was 168.9 MB in the beginning and 167.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 237.8 MB. Max. memory is 16.1 GB. * Witness Printer took 1045.56 ms. Allocated memory is still 503.3 MB. Free memory was 167.0 MB in the beginning and 289.1 MB in the end (delta: -122.0 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 44277.0ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 51.0ms, AutomataDifference: 21919.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 330.7ms, InitialAbstractionConstructionTime: 21.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2245 SDtfs, 1216 SDslu, 4674 SDs, 0 SdLazy, 410 SolverSat, 37 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 19186.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 666 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2005.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=7, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 195.9ms AutomataMinimizationTime, 18 MinimizatonAttempts, 468 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 50 NumberOfFragments, 153 HoareAnnotationTreeSize, 38 FomulaSimplifications, 196 FormulaSimplificationTreeSizeReduction, 73.5ms HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 245.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1409.0ms SsaConstructionTime, 8642.4ms SatisfiabilityAnalysisTime, 5563.9ms InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 23 NumberOfNonLiveVariables, 24647 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9171]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: (\result == 0 && !(map == 0)) && \result == 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10017]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10017]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2637]: Loop Invariant Derived loop invariant: (((2 <= n % 4294967296 && \result + 1 <= 0) && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 10119]: Loop Invariant Derived loop invariant: \result + 1 <= 0 && !(map == 0) - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && \result + 1 <= 0) && 2 <= min_size % 4294967296 - InvariantResult [Line: 9260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10006]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6954]: Loop Invariant Derived loop invariant: (!(map == 0) && \result == 0) && \result == 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10006]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9193]: Loop Invariant Derived loop invariant: ((2 <= n % 4294967296 && !(map == 0)) && 2 <= min_size % 4294967296) && \result + 1 <= 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: (mem == 0 && !(map == 0)) && mem == 0 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9220]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:26:29,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c24d79-91df-49cd-b4fb-45f87999513e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...