./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa --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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:41:57,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:41:57,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:41:57,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:41:57,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:41:57,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:41:57,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:41:57,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:41:57,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:41:57,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:41:57,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:41:57,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:41:57,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:41:57,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:41:57,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:41:57,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:41:57,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:41:57,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:41:57,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:41:57,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:41:57,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:41:57,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:41:57,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:41:57,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:41:57,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:41:57,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:41:57,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:41:57,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:41:57,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:41:57,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:41:57,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:41:57,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:41:57,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:41:57,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:41:57,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:41:57,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:41:57,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:41:57,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:41:57,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:41:57,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:41:57,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:41:57,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 20:41:57,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:41:57,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:41:57,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:41:57,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:41:57,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:41:57,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:41:57,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:41:57,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:41:57,981 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:41:57,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:41:57,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:41:57,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:41:57,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:41:57,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:41:57,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:41:57,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:41:57,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:41:57,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:41:57,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:41:57,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:41:57,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:41:57,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:41:57,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:41:57,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:41:57,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:41:57,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:41:57,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:41:57,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:41:57,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:41:57,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:41:57,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:41:57,991 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_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2021-12-06 20:41:58,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:41:58,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:41:58,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:41:58,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:41:58,180 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:41:58,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-12-06 20:41:58,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/data/71cacdc53/05bbeb12a3ee451d80a13d1f625540ab/FLAG45250ab40 [2021-12-06 20:41:58,859 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:41:58,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-12-06 20:41:58,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/data/71cacdc53/05bbeb12a3ee451d80a13d1f625540ab/FLAG45250ab40 [2021-12-06 20:41:59,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/data/71cacdc53/05bbeb12a3ee451d80a13d1f625540ab [2021-12-06 20:41:59,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:41:59,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:41:59,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:41:59,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:41:59,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:41:59,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:41:59" (1/1) ... [2021-12-06 20:41:59,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f7c0f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:41:59, skipping insertion in model container [2021-12-06 20:41:59,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:41:59" (1/1) ... [2021-12-06 20:41:59,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:41:59,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:41:59,580 WARN L230 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_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-12-06 20:41:59,585 WARN L230 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_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-12-06 20:42:00,395 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,395 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,396 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,396 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,397 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,407 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,408 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,409 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,410 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,411 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,412 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,413 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,413 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:00,783 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 20:42:00,784 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 20:42:00,785 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 20:42:00,786 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 20:42:00,787 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 20:42:00,787 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 20:42:00,788 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 20:42:00,788 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 20:42:00,789 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 20:42:00,789 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 20:42:00,944 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 20:42:01,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,199 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,216 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,217 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,222 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,222 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,233 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:42:01,282 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:42:01,293 WARN L230 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_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-12-06 20:42:01,293 WARN L230 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_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-12-06 20:42:01,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,332 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,333 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,333 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,333 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,334 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,355 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 20:42:01,356 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 20:42:01,356 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 20:42:01,357 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 20:42:01,358 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 20:42:01,358 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 20:42:01,358 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 20:42:01,359 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 20:42:01,359 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 20:42:01,359 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 20:42:01,373 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 20:42:01,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,440 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,441 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,444 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,457 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,458 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,458 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,458 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,459 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,459 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,459 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:42:01,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:42:01,656 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:42:01,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01 WrapperNode [2021-12-06 20:42:01,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:42:01,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:42:01,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:42:01,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:42:01,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,781 INFO L137 Inliner]: procedures = 775, calls = 2445, calls flagged for inlining = 71, calls inlined = 16, statements flattened = 721 [2021-12-06 20:42:01,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:42:01,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:42:01,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:42:01,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:42:01,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:42:01,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:42:01,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:42:01,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:42:01,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (1/1) ... [2021-12-06 20:42:01,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:42:01,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:01,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:42:01,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:42:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2021-12-06 20:42:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2021-12-06 20:42:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-06 20:42:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-06 20:42:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 20:42:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-12-06 20:42:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-12-06 20:42:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:42:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-06 20:42:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-06 20:42:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-06 20:42:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-06 20:42:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-06 20:42:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-06 20:42:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:42:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-12-06 20:42:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-12-06 20:42:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-12-06 20:42:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-12-06 20:42:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:42:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-12-06 20:42:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-12-06 20:42:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:42:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:42:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:42:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:42:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-12-06 20:42:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-12-06 20:42:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:42:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-06 20:42:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-06 20:42:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-06 20:42:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-06 20:42:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-06 20:42:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-06 20:42:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:42:02,127 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:42:02,129 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:42:02,945 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:42:02,954 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:42:02,954 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 20:42:02,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:42:02 BoogieIcfgContainer [2021-12-06 20:42:02,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:42:02,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:42:02,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:42:02,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:42:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:41:59" (1/3) ... [2021-12-06 20:42:02,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e725368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:42:02, skipping insertion in model container [2021-12-06 20:42:02,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:01" (2/3) ... [2021-12-06 20:42:02,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e725368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:42:02, skipping insertion in model container [2021-12-06 20:42:02,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:42:02" (3/3) ... [2021-12-06 20:42:02,965 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i [2021-12-06 20:42:02,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:42:02,970 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:42:03,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:42:03,012 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:42:03,012 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:42:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 126 states have (on average 1.1984126984126984) internal successors, (151), 127 states have internal predecessors, (151), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-06 20:42:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 20:42:03,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:03,040 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:03,040 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash -623915720, now seen corresponding path program 1 times [2021-12-06 20:42:03,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:03,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778954265] [2021-12-06 20:42:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:03,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:03,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:03,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778954265] [2021-12-06 20:42:03,497 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-06 20:42:03,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765161950] [2021-12-06 20:42:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:03,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:03,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:03,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:03,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:42:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:03,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 20:42:03,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:42:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-06 20:42:04,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:42:04,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765161950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:04,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:04,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:42:04,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259368890] [2021-12-06 20:42:04,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:04,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:42:04,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:42:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:42:04,056 INFO L87 Difference]: Start difference. First operand has 194 states, 126 states have (on average 1.1984126984126984) internal successors, (151), 127 states have internal predecessors, (151), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:42:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:04,101 INFO L93 Difference]: Finished difference Result 383 states and 508 transitions. [2021-12-06 20:42:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:42:04,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2021-12-06 20:42:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:04,114 INFO L225 Difference]: With dead ends: 383 [2021-12-06 20:42:04,114 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 20:42:04,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:42:04,123 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:04,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:42:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 20:42:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-12-06 20:42:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 121 states have internal predecessors, (140), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-06 20:42:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 233 transitions. [2021-12-06 20:42:04,179 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 233 transitions. Word has length 134 [2021-12-06 20:42:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:04,180 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 233 transitions. [2021-12-06 20:42:04,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:42:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 233 transitions. [2021-12-06 20:42:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 20:42:04,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:04,185 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:04,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:42:04,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-06 20:42:04,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash -428434944, now seen corresponding path program 1 times [2021-12-06 20:42:04,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:04,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980800118] [2021-12-06 20:42:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:04,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:04,469 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 20:42:04,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165791410] [2021-12-06 20:42:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:04,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:04,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:04,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 20:42:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:04,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 20:42:04,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:42:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-06 20:42:04,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:42:04,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:04,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980800118] [2021-12-06 20:42:04,908 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 20:42:04,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165791410] [2021-12-06 20:42:04,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165791410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:04,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:04,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:42:04,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16030120] [2021-12-06 20:42:04,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:04,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:42:04,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:04,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:42:04,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:04,910 INFO L87 Difference]: Start difference. First operand 187 states and 233 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:42:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:04,947 INFO L93 Difference]: Finished difference Result 337 states and 421 transitions. [2021-12-06 20:42:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2021-12-06 20:42:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:04,950 INFO L225 Difference]: With dead ends: 337 [2021-12-06 20:42:04,950 INFO L226 Difference]: Without dead ends: 192 [2021-12-06 20:42:04,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:42:04,952 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 2 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:04,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 916 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:42:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-12-06 20:42:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2021-12-06 20:42:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.1612903225806452) internal successors, (144), 125 states have internal predecessors, (144), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47) [2021-12-06 20:42:04,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 238 transitions. [2021-12-06 20:42:04,968 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 238 transitions. Word has length 134 [2021-12-06 20:42:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:04,969 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 238 transitions. [2021-12-06 20:42:04,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:42:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 238 transitions. [2021-12-06 20:42:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 20:42:04,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:04,971 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:04,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 20:42:05,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:05,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -447704184, now seen corresponding path program 1 times [2021-12-06 20:42:05,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:05,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252505391] [2021-12-06 20:42:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:05,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:42:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 20:42:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 20:42:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 20:42:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 20:42:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 20:42:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 20:42:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 20:42:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:05,754 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-06 20:42:05,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:05,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252505391] [2021-12-06 20:42:05,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252505391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:05,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:05,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 20:42:05,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504161511] [2021-12-06 20:42:05,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:05,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:42:05,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:05,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:42:05,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:42:05,756 INFO L87 Difference]: Start difference. First operand 192 states and 238 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-06 20:42:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:06,507 INFO L93 Difference]: Finished difference Result 348 states and 437 transitions. [2021-12-06 20:42:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 20:42:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2021-12-06 20:42:06,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:06,511 INFO L225 Difference]: With dead ends: 348 [2021-12-06 20:42:06,511 INFO L226 Difference]: Without dead ends: 217 [2021-12-06 20:42:06,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2021-12-06 20:42:06,513 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 170 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:06,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 1066 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 20:42:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-06 20:42:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 197. [2021-12-06 20:42:06,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.1640625) internal successors, (149), 130 states have internal predecessors, (149), 47 states have call successors, (47), 19 states have call predecessors, (47), 21 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2021-12-06 20:42:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 246 transitions. [2021-12-06 20:42:06,530 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 246 transitions. Word has length 140 [2021-12-06 20:42:06,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:06,530 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 246 transitions. [2021-12-06 20:42:06,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-06 20:42:06,530 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 246 transitions. [2021-12-06 20:42:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 20:42:06,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:06,532 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:06,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:42:06,532 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1286400266, now seen corresponding path program 1 times [2021-12-06 20:42:06,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:06,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461166318] [2021-12-06 20:42:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:06,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:42:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 20:42:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 20:42:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 20:42:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 20:42:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 20:42:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 20:42:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 20:42:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-06 20:42:06,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:06,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461166318] [2021-12-06 20:42:06,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461166318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:06,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:06,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:42:06,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042667880] [2021-12-06 20:42:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:06,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:42:06,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:42:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:42:06,839 INFO L87 Difference]: Start difference. First operand 197 states and 246 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-06 20:42:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:07,175 INFO L93 Difference]: Finished difference Result 355 states and 449 transitions. [2021-12-06 20:42:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:42:07,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2021-12-06 20:42:07,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:07,177 INFO L225 Difference]: With dead ends: 355 [2021-12-06 20:42:07,178 INFO L226 Difference]: Without dead ends: 219 [2021-12-06 20:42:07,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:42:07,179 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 194 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:07,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 730 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:42:07,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-12-06 20:42:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 199. [2021-12-06 20:42:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 129 states have (on average 1.1627906976744187) internal successors, (150), 131 states have internal predecessors, (150), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 249 transitions. [2021-12-06 20:42:07,204 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 249 transitions. Word has length 140 [2021-12-06 20:42:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:07,205 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 249 transitions. [2021-12-06 20:42:07,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-06 20:42:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 249 transitions. [2021-12-06 20:42:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-06 20:42:07,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:07,207 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:07,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:42:07,208 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1325960714, now seen corresponding path program 1 times [2021-12-06 20:42:07,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:07,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365891676] [2021-12-06 20:42:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:07,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:42:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 20:42:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 20:42:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 20:42:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 20:42:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:42:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 20:42:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 20:42:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:42:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-06 20:42:07,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:07,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365891676] [2021-12-06 20:42:07,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365891676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:07,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:07,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:42:07,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584247885] [2021-12-06 20:42:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:07,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:42:07,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:07,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:42:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:42:07,533 INFO L87 Difference]: Start difference. First operand 199 states and 249 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-06 20:42:08,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:08,078 INFO L93 Difference]: Finished difference Result 357 states and 457 transitions. [2021-12-06 20:42:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:42:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 146 [2021-12-06 20:42:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:08,080 INFO L225 Difference]: With dead ends: 357 [2021-12-06 20:42:08,081 INFO L226 Difference]: Without dead ends: 217 [2021-12-06 20:42:08,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:42:08,082 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 149 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:08,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1046 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:42:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-06 20:42:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 199. [2021-12-06 20:42:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 131 states have internal predecessors, (149), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 248 transitions. [2021-12-06 20:42:08,095 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 248 transitions. Word has length 146 [2021-12-06 20:42:08,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:08,096 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 248 transitions. [2021-12-06 20:42:08,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-06 20:42:08,096 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 248 transitions. [2021-12-06 20:42:08,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-06 20:42:08,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:08,097 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:08,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:42:08,098 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash -133220748, now seen corresponding path program 1 times [2021-12-06 20:42:08,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:08,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177879584] [2021-12-06 20:42:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:08,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-12-06 20:42:08,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:08,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177879584] [2021-12-06 20:42:08,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177879584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:08,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:08,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:42:08,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636432177] [2021-12-06 20:42:08,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:08,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:42:08,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:08,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:42:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:42:08,517 INFO L87 Difference]: Start difference. First operand 199 states and 248 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-06 20:42:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:09,053 INFO L93 Difference]: Finished difference Result 232 states and 287 transitions. [2021-12-06 20:42:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 20:42:09,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 151 [2021-12-06 20:42:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:09,056 INFO L225 Difference]: With dead ends: 232 [2021-12-06 20:42:09,056 INFO L226 Difference]: Without dead ends: 230 [2021-12-06 20:42:09,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-12-06 20:42:09,057 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 220 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:09,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 989 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:42:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-12-06 20:42:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 203. [2021-12-06 20:42:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 132 states have (on average 1.1515151515151516) internal successors, (152), 134 states have internal predecessors, (152), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 251 transitions. [2021-12-06 20:42:09,071 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 251 transitions. Word has length 151 [2021-12-06 20:42:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:09,071 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 251 transitions. [2021-12-06 20:42:09,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-06 20:42:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 251 transitions. [2021-12-06 20:42:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-06 20:42:09,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:09,074 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:09,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:42:09,074 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:09,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash -777949396, now seen corresponding path program 1 times [2021-12-06 20:42:09,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:09,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758594046] [2021-12-06 20:42:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:09,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 20:42:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 20:42:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 20:42:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 20:42:10,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:10,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758594046] [2021-12-06 20:42:10,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758594046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:10,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:10,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-06 20:42:10,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360363605] [2021-12-06 20:42:10,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:10,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 20:42:10,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:10,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 20:42:10,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-12-06 20:42:10,006 INFO L87 Difference]: Start difference. First operand 203 states and 251 transitions. Second operand has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 18 states have internal predecessors, (76), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) [2021-12-06 20:42:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:11,640 INFO L93 Difference]: Finished difference Result 259 states and 314 transitions. [2021-12-06 20:42:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 20:42:11,641 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 18 states have internal predecessors, (76), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) Word has length 169 [2021-12-06 20:42:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:11,642 INFO L225 Difference]: With dead ends: 259 [2021-12-06 20:42:11,642 INFO L226 Difference]: Without dead ends: 233 [2021-12-06 20:42:11,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1099, Unknown=0, NotChecked=0, Total=1260 [2021-12-06 20:42:11,644 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 370 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:11,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 993 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 20:42:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-12-06 20:42:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 203. [2021-12-06 20:42:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 132 states have (on average 1.143939393939394) internal successors, (151), 134 states have internal predecessors, (151), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 250 transitions. [2021-12-06 20:42:11,656 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 250 transitions. Word has length 169 [2021-12-06 20:42:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:11,656 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 250 transitions. [2021-12-06 20:42:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 18 states have internal predecessors, (76), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) [2021-12-06 20:42:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 250 transitions. [2021-12-06 20:42:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 20:42:11,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:11,658 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:11,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:42:11,658 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:11,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash 442702791, now seen corresponding path program 1 times [2021-12-06 20:42:11,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:11,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010460110] [2021-12-06 20:42:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:11,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:42:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 20:42:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:42:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-12-06 20:42:11,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010460110] [2021-12-06 20:42:11,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010460110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:11,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:11,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:42:11,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903552742] [2021-12-06 20:42:11,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:11,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:42:11,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:11,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:42:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:42:11,980 INFO L87 Difference]: Start difference. First operand 203 states and 250 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 20:42:12,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:12,233 INFO L93 Difference]: Finished difference Result 307 states and 371 transitions. [2021-12-06 20:42:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:42:12,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2021-12-06 20:42:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:12,235 INFO L225 Difference]: With dead ends: 307 [2021-12-06 20:42:12,235 INFO L226 Difference]: Without dead ends: 221 [2021-12-06 20:42:12,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:42:12,236 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 133 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:12,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 511 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:42:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-06 20:42:12,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2021-12-06 20:42:12,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 133 states have (on average 1.1428571428571428) internal successors, (152), 135 states have internal predecessors, (152), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 251 transitions. [2021-12-06 20:42:12,248 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 251 transitions. Word has length 176 [2021-12-06 20:42:12,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:12,249 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 251 transitions. [2021-12-06 20:42:12,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 20:42:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 251 transitions. [2021-12-06 20:42:12,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 20:42:12,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:12,250 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:12,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:42:12,250 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:12,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash -578365563, now seen corresponding path program 1 times [2021-12-06 20:42:12,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:12,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824029860] [2021-12-06 20:42:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:12,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:42:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 20:42:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:42:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-12-06 20:42:12,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:12,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824029860] [2021-12-06 20:42:12,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824029860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:12,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:12,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:42:12,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596936860] [2021-12-06 20:42:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:12,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:42:12,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:12,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:42:12,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:42:12,566 INFO L87 Difference]: Start difference. First operand 204 states and 251 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-06 20:42:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:13,025 INFO L93 Difference]: Finished difference Result 331 states and 405 transitions. [2021-12-06 20:42:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:42:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 176 [2021-12-06 20:42:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:13,027 INFO L225 Difference]: With dead ends: 331 [2021-12-06 20:42:13,027 INFO L226 Difference]: Without dead ends: 221 [2021-12-06 20:42:13,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:42:13,028 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 93 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:13,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 698 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:42:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-06 20:42:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2021-12-06 20:42:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 133 states have (on average 1.1353383458646618) internal successors, (151), 135 states have internal predecessors, (151), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 250 transitions. [2021-12-06 20:42:13,039 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 250 transitions. Word has length 176 [2021-12-06 20:42:13,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:13,040 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 250 transitions. [2021-12-06 20:42:13,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-06 20:42:13,040 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 250 transitions. [2021-12-06 20:42:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-06 20:42:13,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:13,041 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:13,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:42:13,041 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:13,042 INFO L85 PathProgramCache]: Analyzing trace with hash -361857032, now seen corresponding path program 1 times [2021-12-06 20:42:13,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:13,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116845062] [2021-12-06 20:42:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:13,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 20:42:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 20:42:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 20:42:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 20:42:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-06 20:42:13,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:13,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116845062] [2021-12-06 20:42:13,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116845062] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:42:13,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682234703] [2021-12-06 20:42:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:13,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:13,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:13,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:13,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 20:42:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:13,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2530 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 20:42:13,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:42:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 101 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:42:13,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:42:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-06 20:42:14,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682234703] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:42:14,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:42:14,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 24 [2021-12-06 20:42:14,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452962882] [2021-12-06 20:42:14,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:42:14,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 20:42:14,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 20:42:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2021-12-06 20:42:14,270 INFO L87 Difference]: Start difference. First operand 204 states and 250 transitions. Second operand has 24 states, 20 states have (on average 6.45) internal successors, (129), 18 states have internal predecessors, (129), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) [2021-12-06 20:42:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:15,556 INFO L93 Difference]: Finished difference Result 342 states and 420 transitions. [2021-12-06 20:42:15,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 20:42:15,557 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 6.45) internal successors, (129), 18 states have internal predecessors, (129), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) Word has length 185 [2021-12-06 20:42:15,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:15,559 INFO L225 Difference]: With dead ends: 342 [2021-12-06 20:42:15,559 INFO L226 Difference]: Without dead ends: 230 [2021-12-06 20:42:15,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2021-12-06 20:42:15,560 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 504 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:15,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 1548 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 20:42:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-12-06 20:42:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 210. [2021-12-06 20:42:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 137 states have (on average 1.1313868613138687) internal successors, (155), 141 states have internal predecessors, (155), 48 states have call successors, (48), 20 states have call predecessors, (48), 24 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2021-12-06 20:42:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 257 transitions. [2021-12-06 20:42:15,572 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 257 transitions. Word has length 185 [2021-12-06 20:42:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:15,572 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 257 transitions. [2021-12-06 20:42:15,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 6.45) internal successors, (129), 18 states have internal predecessors, (129), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) [2021-12-06 20:42:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 257 transitions. [2021-12-06 20:42:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-06 20:42:15,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:15,574 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:15,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 20:42:15,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 20:42:15,775 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1707074820, now seen corresponding path program 1 times [2021-12-06 20:42:15,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:15,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472310050] [2021-12-06 20:42:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:15,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 20:42:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 20:42:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 20:42:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 20:42:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-12-06 20:42:16,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:16,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472310050] [2021-12-06 20:42:16,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472310050] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:42:16,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220490939] [2021-12-06 20:42:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:16,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:16,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:16,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 20:42:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:16,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 2579 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:42:16,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:42:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-12-06 20:42:16,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:42:16,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220490939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:16,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:42:16,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-12-06 20:42:16,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160305792] [2021-12-06 20:42:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:16,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:42:16,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:42:16,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:42:16,912 INFO L87 Difference]: Start difference. First operand 210 states and 257 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-12-06 20:42:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:17,067 INFO L93 Difference]: Finished difference Result 327 states and 397 transitions. [2021-12-06 20:42:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:42:17,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 196 [2021-12-06 20:42:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:17,068 INFO L225 Difference]: With dead ends: 327 [2021-12-06 20:42:17,068 INFO L226 Difference]: Without dead ends: 210 [2021-12-06 20:42:17,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-12-06 20:42:17,070 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 273 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:17,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 839 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:42:17,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-12-06 20:42:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2021-12-06 20:42:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 135 states have (on average 1.1333333333333333) internal successors, (153), 138 states have internal predecessors, (153), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2021-12-06 20:42:17,081 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 196 [2021-12-06 20:42:17,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:17,082 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2021-12-06 20:42:17,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-12-06 20:42:17,082 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2021-12-06 20:42:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-06 20:42:17,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:17,083 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:17,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 20:42:17,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:17,284 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:17,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:17,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1755111832, now seen corresponding path program 1 times [2021-12-06 20:42:17,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:17,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829760488] [2021-12-06 20:42:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:17,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 20:42:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 20:42:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 20:42:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 20:42:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-06 20:42:17,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:17,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829760488] [2021-12-06 20:42:17,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829760488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:17,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:17,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:42:17,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762731660] [2021-12-06 20:42:17,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:17,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:42:17,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:17,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:42:17,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:42:17,717 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 11 states, 9 states have (on average 8.333333333333334) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 20:42:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:18,150 INFO L93 Difference]: Finished difference Result 230 states and 278 transitions. [2021-12-06 20:42:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 20:42:18,150 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.333333333333334) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 207 [2021-12-06 20:42:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:18,152 INFO L225 Difference]: With dead ends: 230 [2021-12-06 20:42:18,153 INFO L226 Difference]: Without dead ends: 228 [2021-12-06 20:42:18,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-12-06 20:42:18,154 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 122 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:18,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1344 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:42:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-12-06 20:42:18,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 211. [2021-12-06 20:42:18,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 138 states have (on average 1.1304347826086956) internal successors, (156), 141 states have internal predecessors, (156), 48 states have call successors, (48), 21 states have call predecessors, (48), 24 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2021-12-06 20:42:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 255 transitions. [2021-12-06 20:42:18,170 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 255 transitions. Word has length 207 [2021-12-06 20:42:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:18,171 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 255 transitions. [2021-12-06 20:42:18,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.333333333333334) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 20:42:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 255 transitions. [2021-12-06 20:42:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-06 20:42:18,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:18,173 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:18,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 20:42:18,173 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:18,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2124808202, now seen corresponding path program 1 times [2021-12-06 20:42:18,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:18,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214679423] [2021-12-06 20:42:18,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:18,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:42:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:42:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:42:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:42:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:42:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 20:42:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:42:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:42:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:42:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 20:42:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:42:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:42:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:42:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:42:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:42:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:42:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:42:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 20:42:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 20:42:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 20:42:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:42:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:42:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 20:42:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 20:42:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 20:42:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-12-06 20:42:18,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:18,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214679423] [2021-12-06 20:42:18,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214679423] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:42:18,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951987538] [2021-12-06 20:42:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:18,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:18,717 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:18,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 20:42:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:19,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2649 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 20:42:19,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:42:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-12-06 20:42:19,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:42:19,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951987538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:19,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:42:19,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 13 [2021-12-06 20:42:19,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120055994] [2021-12-06 20:42:19,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:19,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:42:19,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:19,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:42:19,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:42:19,188 INFO L87 Difference]: Start difference. First operand 211 states and 255 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-06 20:42:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:19,367 INFO L93 Difference]: Finished difference Result 375 states and 454 transitions. [2021-12-06 20:42:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:42:19,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 213 [2021-12-06 20:42:19,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:19,368 INFO L225 Difference]: With dead ends: 375 [2021-12-06 20:42:19,368 INFO L226 Difference]: Without dead ends: 211 [2021-12-06 20:42:19,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-12-06 20:42:19,370 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 241 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:19,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 1000 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:42:19,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-12-06 20:42:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2021-12-06 20:42:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 134 states have (on average 1.1194029850746268) internal successors, (150), 137 states have internal predecessors, (150), 48 states have call successors, (48), 21 states have call predecessors, (48), 23 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2021-12-06 20:42:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 248 transitions. [2021-12-06 20:42:19,380 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 248 transitions. Word has length 213 [2021-12-06 20:42:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:19,381 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 248 transitions. [2021-12-06 20:42:19,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-06 20:42:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 248 transitions. [2021-12-06 20:42:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-06 20:42:19,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:19,382 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:19,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 20:42:19,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 20:42:19,583 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:19,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:19,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2025906859, now seen corresponding path program 1 times [2021-12-06 20:42:19,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:19,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424223219] [2021-12-06 20:42:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:19,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:19,618 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 20:42:19,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641253740] [2021-12-06 20:42:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:19,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:42:19,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:19,619 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:42:19,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 20:55:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:55:59,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 399 conjunts are in the unsatisfiable core [2021-12-06 20:55:59,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:55:59,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:56:00,452 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 20:56:00,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 20:56:00,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-06 20:56:00,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 20:56:00,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-06 20:56:00,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 20:56:01,339 INFO L354 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2021-12-06 20:56:01,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 88 treesize of output 114 [2021-12-06 20:56:02,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-06 20:56:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 148 proven. 12 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-12-06 20:56:03,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:56:04,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:56:04,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424223219] [2021-12-06 20:56:04,045 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 20:56:04,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641253740] [2021-12-06 20:56:04,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641253740] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:56:04,046 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:56:04,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2021-12-06 20:56:04,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175715977] [2021-12-06 20:56:04,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-06 20:56:04,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-06 20:56:04,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:56:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-06 20:56:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1423, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 20:56:04,047 INFO L87 Difference]: Start difference. First operand 206 states and 248 transitions. Second operand has 37 states, 28 states have (on average 3.392857142857143) internal successors, (95), 26 states have internal predecessors, (95), 12 states have call successors, (33), 6 states have call predecessors, (33), 11 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2021-12-06 20:56:04,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:56:04,472 INFO L93 Difference]: Finished difference Result 406 states and 481 transitions. [2021-12-06 20:56:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-06 20:56:04,473 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 3.392857142857143) internal successors, (95), 26 states have internal predecessors, (95), 12 states have call successors, (33), 6 states have call predecessors, (33), 11 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 219 [2021-12-06 20:56:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:56:04,475 INFO L225 Difference]: With dead ends: 406 [2021-12-06 20:56:04,475 INFO L226 Difference]: Without dead ends: 229 [2021-12-06 20:56:04,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 284 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=147, Invalid=1493, Unknown=0, NotChecked=0, Total=1640 [2021-12-06 20:56:04,477 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 23 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1329 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:56:04,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 3768 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 1329 Unchecked, 0.3s Time] [2021-12-06 20:56:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-12-06 20:56:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 228. [2021-12-06 20:56:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 149 states have (on average 1.1073825503355705) internal successors, (165), 152 states have internal predecessors, (165), 50 states have call successors, (50), 26 states have call predecessors, (50), 28 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2021-12-06 20:56:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 268 transitions. [2021-12-06 20:56:04,495 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 268 transitions. Word has length 219 [2021-12-06 20:56:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:56:04,495 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 268 transitions. [2021-12-06 20:56:04,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 3.392857142857143) internal successors, (95), 26 states have internal predecessors, (95), 12 states have call successors, (33), 6 states have call predecessors, (33), 11 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2021-12-06 20:56:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 268 transitions. [2021-12-06 20:56:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-06 20:56:04,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:56:04,498 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:56:04,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 20:56:04,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 20:56:04,698 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:56:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:56:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1719785267, now seen corresponding path program 1 times [2021-12-06 20:56:04,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:56:04,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896930420] [2021-12-06 20:56:04,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:56:04,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:56:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:56:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:56:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:56:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 20:56:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:56:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:56:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:56:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:56:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 20:56:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:56:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 20:56:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 20:56:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:56:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 20:56:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:56:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:56:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:56:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 20:56:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 20:56:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 20:56:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 20:56:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 20:56:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 20:56:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 20:56:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 20:56:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:56:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:56:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:56:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 20:56:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:56:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 20:56:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:56:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 20:56:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 20:56:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-06 20:56:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-06 20:56:05,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:56:05,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896930420] [2021-12-06 20:56:05,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896930420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:56:05,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:56:05,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:56:05,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887673805] [2021-12-06 20:56:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:56:05,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:56:05,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:56:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:56:05,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:56:05,116 INFO L87 Difference]: Start difference. First operand 228 states and 268 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-06 20:56:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:56:05,568 INFO L93 Difference]: Finished difference Result 412 states and 487 transitions. [2021-12-06 20:56:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:56:05,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2021-12-06 20:56:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:56:05,570 INFO L225 Difference]: With dead ends: 412 [2021-12-06 20:56:05,570 INFO L226 Difference]: Without dead ends: 223 [2021-12-06 20:56:05,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:56:05,571 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 79 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:56:05,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1149 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:56:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-12-06 20:56:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 214. [2021-12-06 20:56:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 140 states have (on average 1.1) internal successors, (154), 143 states have internal predecessors, (154), 47 states have call successors, (47), 24 states have call predecessors, (47), 26 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2021-12-06 20:56:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 250 transitions. [2021-12-06 20:56:05,582 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 250 transitions. Word has length 225 [2021-12-06 20:56:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:56:05,582 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 250 transitions. [2021-12-06 20:56:05,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-06 20:56:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 250 transitions. [2021-12-06 20:56:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-06 20:56:05,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:56:05,584 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:56:05,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 20:56:05,584 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:56:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:56:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1638507119, now seen corresponding path program 1 times [2021-12-06 20:56:05,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:56:05,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272736940] [2021-12-06 20:56:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:56:05,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:56:05,618 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 20:56:05,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332487703] [2021-12-06 20:56:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:56:05,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:56:05,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:56:05,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:56:05,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 20:56:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:56:05,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:56:05,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:56:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-06 20:56:06,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:56:06,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:56:06,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272736940] [2021-12-06 20:56:06,142 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 20:56:06,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332487703] [2021-12-06 20:56:06,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332487703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:56:06,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:56:06,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:56:06,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206389093] [2021-12-06 20:56:06,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:56:06,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:56:06,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:56:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:56:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:56:06,144 INFO L87 Difference]: Start difference. First operand 214 states and 250 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-06 20:56:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:56:06,156 INFO L93 Difference]: Finished difference Result 214 states and 250 transitions. [2021-12-06 20:56:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:56:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2021-12-06 20:56:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:56:06,157 INFO L225 Difference]: With dead ends: 214 [2021-12-06 20:56:06,157 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 20:56:06,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:56:06,158 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 2 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:56:06,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 274 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:56:06,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 20:56:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 20:56:06,159 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) [2021-12-06 20:56:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:56:06,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2021-12-06 20:56:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:56:06,159 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:56:06,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-06 20:56:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:56:06,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 20:56:06,161 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:56:06,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 20:56:06,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 20:56:06,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 20:56:07,065 INFO L858 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2021-12-06 20:56:07,065 INFO L854 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (or (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int)) (let ((.cse0 (+ (* 18446744073709551616 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|))) (or (not (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (not (<= |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 8)) (not (<= 0 .cse0)) (= .cse0 0) (not (= (+ (* 442721857769029238784 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) (* 442721857769029238784 |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104|) (* 24 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (+ 29629528 (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0)))) (not (< .cse0 18446744073709551616))))) (not (< 0 |#StackHeapBarrier|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,065 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (or (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int)) (let ((.cse0 (+ (* 18446744073709551616 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|))) (or (not (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (not (<= |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 8)) (not (<= 0 .cse0)) (= .cse0 0) (not (= (+ (* 442721857769029238784 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) (* 442721857769029238784 |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104|) (* 24 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (+ 29629528 (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0)))) (not (< .cse0 18446744073709551616))))) (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,065 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2021-12-06 20:56:07,065 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2021-12-06 20:56:07,065 INFO L861 garLoopResultBuilder]: At program point L10017-4(line 10017) the Hoare annotation is: true [2021-12-06 20:56:07,065 INFO L858 garLoopResultBuilder]: For program point L10017-5(line 10017) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L10017-7(line 10017) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L10017(line 10017) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L10017-2(line 10017) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L10017-3(line 10017) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L861 garLoopResultBuilder]: At program point aws_hash_table_is_validENTRY(lines 10015 10018) the Hoare annotation is: true [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point aws_hash_table_is_validEXIT(lines 10015 10018) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point aws_hash_table_is_validFINAL(lines 10015 10018) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L7130(lines 7130 7134) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7122 7135) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L861 garLoopResultBuilder]: At program point L7126(lines 7126 7128) the Hoare annotation is: true [2021-12-06 20:56:07,066 INFO L861 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7122 7135) the Hoare annotation is: true [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L7130-2(lines 7122 7135) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L7123-1(lines 7123 7125) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L861 garLoopResultBuilder]: At program point L7123(lines 7123 7125) the Hoare annotation is: true [2021-12-06 20:56:07,066 INFO L858 garLoopResultBuilder]: For program point L7126-1(lines 7126 7128) no Hoare annotation was computed. [2021-12-06 20:56:07,066 INFO L854 garLoopResultBuilder]: At program point hash_table_state_required_bytesENTRY(lines 10128 10140) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L10135-2(lines 10135 10137) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L854 garLoopResultBuilder]: At program point L10131(line 10131) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0))) [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L10131-1(line 10131) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L854 garLoopResultBuilder]: At program point L10135(line 10135) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= (* 24 |hash_table_state_required_bytes_#in~size|) |hash_table_state_required_bytes_#t~mem1325|) (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|))) [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point hash_table_state_required_bytesEXIT(lines 10128 10140) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L10135-1(line 10135) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L10131-2(lines 10131 10133) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point hash_table_state_required_bytesFINAL(lines 10128 10140) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L861 garLoopResultBuilder]: At program point memset_override_0_implENTRY(lines 7397 7412) the Hoare annotation is: true [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point memset_override_0_implFINAL(lines 7397 7412) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L7403-1(line 7403) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L861 garLoopResultBuilder]: At program point L7403(line 7403) the Hoare annotation is: true [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L7407-4(lines 7407 7409) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L861 garLoopResultBuilder]: At program point L7407-3(lines 7407 7409) the Hoare annotation is: true [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point L7407-2(lines 7407 7409) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L858 garLoopResultBuilder]: For program point memset_override_0_implEXIT(lines 7397 7412) no Hoare annotation was computed. [2021-12-06 20:56:07,067 INFO L861 garLoopResultBuilder]: At program point L7398(line 7398) the Hoare annotation is: true [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point L7400(line 7400) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L861 garLoopResultBuilder]: At program point L7398-1(line 7398) the Hoare annotation is: true [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point aws_mul_size_checkedEXIT(lines 2586 2594) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point aws_mul_size_checkedFINAL(lines 2586 2594) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L854 garLoopResultBuilder]: At program point aws_mul_size_checkedENTRY(lines 2586 2594) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,068 INFO L854 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: (let ((.cse0 (= |old(#valid)| |#valid|))) (or (and (<= (+ |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 1) 0) .cse0) (not (< 0 |#StackHeapBarrier|)) (and (= ~tl_last_error~0 |old(~tl_last_error~0)|) (exists ((v_ArrVal_1486 Int) (|v___CPROVER_overflow_mult_~#c~1.base_67| Int)) (and (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67| v_ArrVal_1486) |#valid|) (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67|) 0))) (= (* |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_#in~b#1|) (select (select |#memory_int| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset|)) .cse0))) [2021-12-06 20:56:07,068 INFO L854 garLoopResultBuilder]: At program point L2498(line 2498) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point L2499-1(line 2499) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L854 garLoopResultBuilder]: At program point L2499(line 2499) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (exists ((v_ArrVal_1486 Int) (|v___CPROVER_overflow_mult_~#c~1.base_67| Int)) (and (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67| v_ArrVal_1486) |#valid|) (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67|) 0))) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L861 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~VOIDENTRY(line -1) the Hoare annotation is: true [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,068 INFO L858 garLoopResultBuilder]: For program point L6852(line 6852) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L854 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L861 garLoopResultBuilder]: At program point hash_table_state_is_validENTRY(lines 10026 10073) the Hoare annotation is: true [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point L10028(lines 10028 10032) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point hash_table_state_is_validEXIT(lines 10026 10073) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point hash_table_state_is_validFINAL(lines 10026 10073) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point L10054-1(line 10054) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L861 garLoopResultBuilder]: At program point L10054(line 10054) the Hoare annotation is: true [2021-12-06 20:56:07,069 INFO L861 garLoopResultBuilder]: At program point my_memsetENTRY(lines 7414 7416) the Hoare annotation is: true [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point my_memsetFINAL(lines 7414 7416) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point L7415-1(line 7415) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L861 garLoopResultBuilder]: At program point L7415(line 7415) the Hoare annotation is: true [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point my_memsetEXIT(lines 7414 7416) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-06 20:56:07,069 INFO L854 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6950 6952) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6950 6952) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6950 6952) the Hoare annotation is: true [2021-12-06 20:56:07,070 INFO L854 garLoopResultBuilder]: At program point __CPROVER_overflow_multENTRY(lines 253 256) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_multEXIT(lines 253 256) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_multFINAL(lines 253 256) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point aws_is_power_of_twoFINAL(lines 2626 2631) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point aws_is_power_of_twoEXIT(lines 2626 2631) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L861 garLoopResultBuilder]: At program point aws_is_power_of_twoENTRY(lines 2626 2631) the Hoare annotation is: true [2021-12-06 20:56:07,070 INFO L854 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: (let ((.cse0 (= |old(#valid)| |#valid|))) (or (not (< 0 |#StackHeapBarrier|)) (and (<= (+ |aws_add_size_checked_aws_add_u64_checked_#res#1| 1) 0) .cse0) (and (= (select (select |#memory_int| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset|) (+ |aws_add_size_checked_#in~b#1| |aws_add_size_checked_#in~a#1|)) (exists ((v_ArrVal_1486 Int) (|v___CPROVER_overflow_mult_~#c~1.base_67| Int)) (and (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67| v_ArrVal_1486) |#valid|) (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_67|) 0))) .cse0))) [2021-12-06 20:56:07,070 INFO L854 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2021-12-06 20:56:07,070 INFO L854 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2021-12-06 20:56:07,070 INFO L854 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: (or (and (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|)) (not (< 0 |#StackHeapBarrier|))) [2021-12-06 20:56:07,070 INFO L858 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (not (= .cse0 0)) (<= .cse0 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L9276(lines 9276 9278) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L9276-2(lines 9276 9278) the Hoare annotation is: false [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L6815-3(line 6815) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L6815-2(line 6815) the Hoare annotation is: (let ((.cse0 (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (.cse1 (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|))) (.cse2 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|)) (.cse3 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (.cse4 (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and (<= (+ |ULTIMATE.start_ensure_allocated_hash_table_#t~ret550#1| 1) 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (let ((.cse6 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and .cse0 .cse1 (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) .cse2 .cse3 (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (= (* 24 |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1|) (+ 29629528 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|))) (not (= .cse6 0)) (<= .cse6 8) .cse4 (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret550#1| 0) .cse5)))) [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L6840-1(line 6840) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L6840(line 6840) the Hoare annotation is: false [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L9276-3(lines 9276 9278) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L9945(line 9945) the Hoare annotation is: false [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L9945-1(line 9945) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L7179-1(line 7179) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L7179(line 7179) the Hoare annotation is: false [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L9285(lines 9285 9287) no Hoare annotation was computed. [2021-12-06 20:56:07,071 INFO L854 garLoopResultBuilder]: At program point L9954(line 9954) the Hoare annotation is: false [2021-12-06 20:56:07,071 INFO L858 garLoopResultBuilder]: For program point L6816-1(line 6816) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L854 garLoopResultBuilder]: At program point L6816(line 6816) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|)) (.cse1 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= (select .cse0 0) |ULTIMATE.start_ensure_allocated_hash_table_#t~mem551#1|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (= (* 24 |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1|) (+ 29629528 (select .cse0 |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|))) (not (= .cse1 0)) (<= .cse1 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L9954-1(line 9954) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L6841-1(line 6841) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L854 garLoopResultBuilder]: At program point L6841(line 6841) the Hoare annotation is: false [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L9938(line 9938) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L854 garLoopResultBuilder]: At program point L6833(lines 6831 6834) the Hoare annotation is: false [2021-12-06 20:56:07,072 INFO L861 garLoopResultBuilder]: At program point L10161(line 10161) the Hoare annotation is: true [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L9938-2(lines 9938 9951) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L7180-1(line 7180) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L9938-3(lines 9938 9951) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L854 garLoopResultBuilder]: At program point L7180(line 7180) the Hoare annotation is: false [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L6825-3(lines 6825 6827) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L6825-1(lines 6825 6827) no Hoare annotation was computed. [2021-12-06 20:56:07,072 INFO L854 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2021-12-06 20:56:07,072 INFO L858 garLoopResultBuilder]: For program point L9278-1(line 9278) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L9947(lines 9947 9949) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L10145(line 10145) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L10145-1(line 10145) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L10145-2(line 10145) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L9278(line 9278) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L6809(lines 6809 6819) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L9939-1(lines 9939 9950) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L10154(line 10154) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L9939-3(lines 9939 9950) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L9939-4(lines 9939 9950) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L9295(lines 9295 9297) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L9295-1(lines 9295 9297) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L7181(line 7181) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L10154-1(line 10154) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L9948(line 9948) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L9948-1(line 9948) no Hoare annotation was computed. [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2021-12-06 20:56:07,073 INFO L854 garLoopResultBuilder]: At program point L6843(lines 6837 6844) the Hoare annotation is: false [2021-12-06 20:56:07,073 INFO L858 garLoopResultBuilder]: For program point L6810-1(line 6810) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L9957(line 9957) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L9957-1(line 9957) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L10147(line 10147) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L9957-2(line 9957) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L10147-1(line 10147) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L6811-1(line 6811) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|)) [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L9941(lines 9941 9943) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L9272(lines 9272 9298) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L9933(lines 9933 9958) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L10156(lines 10156 10158) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L10156-1(lines 10156 10158) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L7175(lines 7175 7183) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L6812-1(line 6812) no Hoare annotation was computed. [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L6812(line 6812) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (or (and (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret549#1| 1) (not (= .cse0 0))) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret549#1| 0)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset| 0) (<= .cse0 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2021-12-06 20:56:07,074 INFO L854 garLoopResultBuilder]: At program point L9273(lines 9273 9275) the Hoare annotation is: false [2021-12-06 20:56:07,074 INFO L858 garLoopResultBuilder]: For program point L9273-1(lines 9273 9275) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L854 garLoopResultBuilder]: At program point L9934-1(line 9934) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|))) (and (not (= .cse0 |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= |ULTIMATE.start_aws_hash_table_clear_#t~ret1248#1| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) |ULTIMATE.start_aws_hash_table_clean_up_~state~4#1.offset|) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#empty_slot_idx~1#1.base|)) (not (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_hash_table_state_has_an_empty_slot_~rval#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_~map#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= .cse0 |ULTIMATE.start_aws_hash_table_clean_up_~state~4#1.base|) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_table_clean_up_~map#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_~map#1.offset|) 0)) (< 0 |#StackHeapBarrier|))) [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L9934-2(line 9934) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L854 garLoopResultBuilder]: At program point L9290(line 9290) the Hoare annotation is: false [2021-12-06 20:56:07,075 INFO L854 garLoopResultBuilder]: At program point L9934(line 9934) the Hoare annotation is: false [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L7176(lines 7176 7182) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L9290-1(line 9290) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L6821(lines 6821 6828) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L10141(lines 10141 10160) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L7185(lines 7185 7187) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L854 garLoopResultBuilder]: At program point L6822(line 6822) the Hoare annotation is: false [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L6822-3(lines 6822 6824) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L6822-1(lines 6822 6824) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L6839-1(line 6839) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L854 garLoopResultBuilder]: At program point L6839(line 6839) the Hoare annotation is: false [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L9944(lines 9944 9946) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L9944-2(lines 9944 9946) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-06 20:56:07,075 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-06 20:56:07,075 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-06 20:56:07,076 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-06 20:56:07,076 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-06 20:56:07,076 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-06 20:56:07,078 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:56:07,079 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:56:07,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:56:07 BoogieIcfgContainer [2021-12-06 20:56:07,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:56:07,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:56:07,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:56:07,093 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:56:07,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:42:02" (3/4) ... [2021-12-06 20:56:07,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:56:07,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-06 20:56:07,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_override_0_impl [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 20:56:07,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2021-12-06 20:56:07,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 161 nodes and edges [2021-12-06 20:56:07,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2021-12-06 20:56:07,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-12-06 20:56:07,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 20:56:07,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-06 20:56:07,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 20:56:07,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:56:07,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 20:56:07,142 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result + 1 <= 0 && \old(\valid) == \valid) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((tl_last_error == \old(tl_last_error) && (\exists v_ArrVal_1486 : int, v___CPROVER_overflow_mult_~#c~1.base_67 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67 := v_ArrVal_1486] == \valid && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67] == 0)) && \old(a) * \old(b) == unknown-#memory_int-unknown[r][r]) && \old(\valid) == \valid) [2021-12-06 20:56:07,142 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 < unknown-#StackHeapBarrier-unknown) || (\result + 1 <= 0 && \old(\valid) == \valid)) || ((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (\exists v_ArrVal_1486 : int, v___CPROVER_overflow_mult_~#c~1.base_67 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67 := v_ArrVal_1486] == \valid && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67] == 0)) && \old(\valid) == \valid) [2021-12-06 20:56:07,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:56:07,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:56:07,814 INFO L158 Benchmark]: Toolchain (without parser) took 848531.33ms. Allocated memory was 113.2MB in the beginning and 352.3MB in the end (delta: 239.1MB). Free memory was 82.5MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,814 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:56:07,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2373.54ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 82.2MB in the beginning and 74.1MB in the end (delta: 8.2MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.19ms. Allocated memory is still 138.4MB. Free memory was 74.1MB in the beginning and 63.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,814 INFO L158 Benchmark]: Boogie Preprocessor took 62.47ms. Allocated memory is still 138.4MB. Free memory was 63.6MB in the beginning and 56.6MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,815 INFO L158 Benchmark]: RCFGBuilder took 1111.90ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 56.6MB in the beginning and 100.2MB in the end (delta: -43.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,815 INFO L158 Benchmark]: TraceAbstraction took 844133.59ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 99.1MB in the beginning and 236.4MB in the end (delta: -137.4MB). Peak memory consumption was 206.4MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,815 INFO L158 Benchmark]: Witness Printer took 720.68ms. Allocated memory is still 352.3MB. Free memory was 236.4MB in the beginning and 80.9MB in the end (delta: 155.5MB). Peak memory consumption was 180.7MB. Max. memory is 16.1GB. [2021-12-06 20:56:07,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2373.54ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 82.2MB in the beginning and 74.1MB in the end (delta: 8.2MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.19ms. Allocated memory is still 138.4MB. Free memory was 74.1MB in the beginning and 63.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.47ms. Allocated memory is still 138.4MB. Free memory was 63.6MB in the beginning and 56.6MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1111.90ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 56.6MB in the beginning and 100.2MB in the end (delta: -43.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 844133.59ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 99.1MB in the beginning and 236.4MB in the end (delta: -137.4MB). Peak memory consumption was 206.4MB. Max. memory is 16.1GB. * Witness Printer took 720.68ms. Allocated memory is still 352.3MB. Free memory was 236.4MB in the beginning and 80.9MB in the end (delta: 155.5MB). Peak memory consumption was 180.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 20 procedures, 194 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 844.1s, OverallIterations: 16, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2712 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2575 mSDsluCounter, 17112 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1329 IncrementalHoareTripleChecker+Unchecked, 14078 mSDsCounter, 1589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10292 IncrementalHoareTripleChecker+Invalid, 13210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1589 mSolverCounterUnsat, 3034 mSDtfsCounter, 10292 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2450 GetRequests, 2181 SyntacticMatches, 6 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=14, InterpolantAutomatonStates: 204, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 204 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 648 PreInvPairs, 679 NumberOfFragments, 946 HoareAnnotationTreeSize, 648 FomulaSimplifications, 1250 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 75 FomulaSimplificationsInter, 1914 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 822.1s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 3564 NumberOfCodeBlocks, 3564 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3595 ConstructedInterpolants, 47 QuantifiedInterpolants, 8807 SizeOfPredicates, 62 NumberOfNonLiveVariables, 17946 ConjunctsInSsa, 466 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 5351/5422 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 1 specifications checked. All of them hold - InvariantResult [Line: 6831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7407]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant [2021-12-06 20:56:07,823 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,823 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,823 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,824 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,824 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,824 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] Derived loop invariant: ((\result + 1 <= 0 && \old(\valid) == \valid) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((tl_last_error == \old(tl_last_error) && (\exists v_ArrVal_1486 : int, v___CPROVER_overflow_mult_~#c~1.base_67 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67 := v_ArrVal_1486] == \valid && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67] == 0)) && \old(a) * \old(b) == unknown-#memory_int-unknown[r][r]) && \old(\valid) == \valid) - InvariantResult [Line: 2541]: Loop Invariant [2021-12-06 20:56:07,825 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,825 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,825 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1486,QUANTIFIED] [2021-12-06 20:56:07,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] [2021-12-06 20:56:07,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_67,QUANTIFIED] Derived loop invariant: (!(0 < unknown-#StackHeapBarrier-unknown) || (\result + 1 <= 0 && \old(\valid) == \valid)) || ((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (\exists v_ArrVal_1486 : int, v___CPROVER_overflow_mult_~#c~1.base_67 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67 := v_ArrVal_1486] == \valid && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_67] == 0)) && \old(\valid) == \valid) - InvariantResult [Line: 10161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9272]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-06 20:56:07,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2f1efb-029b-403b-bbce-ed78c6fdebc8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE