./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/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 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:28:01,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:28:01,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:28:01,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:28:01,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:28:01,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:28:01,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:28:01,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:28:01,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:28:01,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:28:01,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:28:01,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:28:01,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:28:01,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:28:01,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:28:01,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:28:01,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:28:01,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:28:01,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:28:01,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:28:01,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:28:01,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:28:01,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:28:01,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:28:01,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:28:01,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:28:01,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:28:01,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:28:01,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:28:01,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:28:01,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:28:01,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:28:01,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:28:01,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:28:01,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:28:01,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:28:01,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:28:01,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:28:01,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:28:01,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:28:01,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:28:01,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:28:01,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:28:01,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:28:01,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:28:01,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:28:01,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:28:01,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:28:01,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:28:01,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:28:01,281 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:28:01,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:28:01,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:28:01,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:28:01,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:28:01,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:28:01,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:28:01,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:28:01,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:28:01,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:28:01,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:28:01,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:28:01,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:28:01,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:28:01,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:28:01,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:28:01,288 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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2021-12-06 23:28:01,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:28:01,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:28:01,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:28:01,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:28:01,498 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:28:01,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-12-06 23:28:01,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/data/0f5c4401e/04e2b6de01954f0badd640119a13c831/FLAG4bae0afbc [2021-12-06 23:28:02,084 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:28:02,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-12-06 23:28:02,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/data/0f5c4401e/04e2b6de01954f0badd640119a13c831/FLAG4bae0afbc [2021-12-06 23:28:02,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/data/0f5c4401e/04e2b6de01954f0badd640119a13c831 [2021-12-06 23:28:02,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:28:02,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:28:02,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:28:02,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:28:02,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:28:02,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:28:02" (1/1) ... [2021-12-06 23:28:02,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6958a24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:02, skipping insertion in model container [2021-12-06 23:28:02,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:28:02" (1/1) ... [2021-12-06 23:28:02,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:28:02,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:28:02,815 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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-12-06 23:28:02,819 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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-12-06 23:28:03,359 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,359 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,360 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,361 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,362 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,377 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,377 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,379 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,380 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,381 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,382 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,383 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,384 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,656 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 23:28:03,657 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 23:28:03,658 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 23:28:03,659 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 23:28:03,660 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 23:28:03,661 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 23:28:03,661 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 23:28:03,662 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 23:28:03,663 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 23:28:03,663 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 23:28:03,775 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 23:28:03,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:28:03,810 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:28:03,822 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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-12-06 23:28:03,822 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_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-12-06 23:28:03,870 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,870 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,871 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,871 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,872 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,880 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,884 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,884 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 23:28:03,920 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 23:28:03,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 23:28:03,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 23:28:03,923 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 23:28:03,924 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 23:28:03,925 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 23:28:03,925 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 23:28:03,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 23:28:03,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 23:28:03,927 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 23:28:03,950 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 23:28:03,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:28:04,156 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:28:04,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04 WrapperNode [2021-12-06 23:28:04,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:28:04,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:28:04,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:28:04,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:28:04,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,254 INFO L137 Inliner]: procedures = 679, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 152 [2021-12-06 23:28:04,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:28:04,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:28:04,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:28:04,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:28:04,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:28:04,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:28:04,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:28:04,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:28:04,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (1/1) ... [2021-12-06 23:28:04,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:28:04,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:28:04,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:28:04,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:28:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:28:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 23:28:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2021-12-06 23:28:04,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2021-12-06 23:28:04,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:28:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2021-12-06 23:28:04,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2021-12-06 23:28:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:28:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:28:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:28:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:28:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:28:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:28:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:28:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-06 23:28:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-06 23:28:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2021-12-06 23:28:04,366 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2021-12-06 23:28:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:28:04,528 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:28:04,530 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:28:04,763 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:28:04,769 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:28:04,769 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:28:04,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:28:04 BoogieIcfgContainer [2021-12-06 23:28:04,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:28:04,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:28:04,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:28:04,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:28:04,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:28:02" (1/3) ... [2021-12-06 23:28:04,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6429315b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:28:04, skipping insertion in model container [2021-12-06 23:28:04,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:28:04" (2/3) ... [2021-12-06 23:28:04,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6429315b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:28:04, skipping insertion in model container [2021-12-06 23:28:04,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:28:04" (3/3) ... [2021-12-06 23:28:04,777 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2021-12-06 23:28:04,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:28:04,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:28:04,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:28:04,821 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 23:28:04,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:28:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-12-06 23:28:04,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 23:28:04,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:28:04,841 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-06 23:28:04,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:28:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:28:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2111829670, now seen corresponding path program 1 times [2021-12-06 23:28:04,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:28:04,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393424096] [2021-12-06 23:28:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:04,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:28:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:28:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:28:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 23:28:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:28:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:28:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 23:28:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 23:28:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 23:28:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:28:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 23:28:05,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:28:05,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393424096] [2021-12-06 23:28:05,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393424096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:28:05,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:28:05,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:28:05,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636373308] [2021-12-06 23:28:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:28:05,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:28:05,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:28:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:28:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:28:05,280 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:28:05,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:28:05,334 INFO L93 Difference]: Finished difference Result 204 states and 302 transitions. [2021-12-06 23:28:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:28:05,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2021-12-06 23:28:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:28:05,343 INFO L225 Difference]: With dead ends: 204 [2021-12-06 23:28:05,343 INFO L226 Difference]: Without dead ends: 103 [2021-12-06 23:28:05,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:28:05,350 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 3 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:28:05,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 400 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:28:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-06 23:28:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-12-06 23:28:05,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-12-06 23:28:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2021-12-06 23:28:05,389 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 74 [2021-12-06 23:28:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:28:05,389 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2021-12-06 23:28:05,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:28:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2021-12-06 23:28:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 23:28:05,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:28:05,393 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-06 23:28:05,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:28:05,393 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:28:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:28:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash 358576094, now seen corresponding path program 1 times [2021-12-06 23:28:05,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:28:05,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922359680] [2021-12-06 23:28:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:05,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:28:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:28:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:28:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 23:28:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:28:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:28:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 23:28:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 23:28:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 23:28:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:28:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 23:28:05,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:28:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922359680] [2021-12-06 23:28:05,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922359680] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:28:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101827509] [2021-12-06 23:28:05,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:05,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:28:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:28:05,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:28:05,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:28:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:05,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 23:28:05,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:28:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 23:28:06,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:28:06,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101827509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:28:06,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:28:06,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11 [2021-12-06 23:28:06,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722203664] [2021-12-06 23:28:06,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:28:06,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:28:06,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:28:06,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:28:06,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:28:06,018 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 23:28:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:28:06,227 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2021-12-06 23:28:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:28:06,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 74 [2021-12-06 23:28:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:28:06,230 INFO L225 Difference]: With dead ends: 194 [2021-12-06 23:28:06,230 INFO L226 Difference]: Without dead ends: 106 [2021-12-06 23:28:06,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-12-06 23:28:06,232 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:28:06,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 629 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:28:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-12-06 23:28:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2021-12-06 23:28:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2021-12-06 23:28:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2021-12-06 23:28:06,246 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 74 [2021-12-06 23:28:06,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:28:06,246 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-12-06 23:28:06,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 23:28:06,247 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2021-12-06 23:28:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-06 23:28:06,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:28:06,248 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-06 23:28:06,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:28:06,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:28:06,450 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:28:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:28:06,452 INFO L85 PathProgramCache]: Analyzing trace with hash 87330846, now seen corresponding path program 1 times [2021-12-06 23:28:06,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:28:06,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718868737] [2021-12-06 23:28:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:06,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:28:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:28:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:28:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 23:28:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 23:28:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 23:28:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 23:28:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:28:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:28:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:28:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 23:28:06,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:28:06,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718868737] [2021-12-06 23:28:06,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718868737] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:28:06,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866760682] [2021-12-06 23:28:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:06,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:28:06,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:28:06,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:28:06,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 23:28:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:06,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-06 23:28:06,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:28:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 23:28:07,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:28:07,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866760682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:28:07,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:28:07,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2021-12-06 23:28:07,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524617760] [2021-12-06 23:28:07,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:28:07,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:28:07,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:28:07,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:28:07,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:28:07,052 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 23:28:07,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:28:07,242 INFO L93 Difference]: Finished difference Result 199 states and 268 transitions. [2021-12-06 23:28:07,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:28:07,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 76 [2021-12-06 23:28:07,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:28:07,244 INFO L225 Difference]: With dead ends: 199 [2021-12-06 23:28:07,244 INFO L226 Difference]: Without dead ends: 109 [2021-12-06 23:28:07,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-12-06 23:28:07,247 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:28:07,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 734 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:28:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-12-06 23:28:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2021-12-06 23:28:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 70 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2021-12-06 23:28:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2021-12-06 23:28:07,262 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 76 [2021-12-06 23:28:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:28:07,262 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2021-12-06 23:28:07,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 23:28:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2021-12-06 23:28:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-06 23:28:07,265 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:28:07,265 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-06 23:28:07,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 23:28:07,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:28:07,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:28:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:28:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 958884107, now seen corresponding path program 1 times [2021-12-06 23:28:07,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:28:07,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383978650] [2021-12-06 23:28:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:28:07,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:28:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:28:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:28:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 23:28:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 23:28:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 23:28:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:28:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:28:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:28:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 23:28:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:28:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 23:28:07,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:28:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383978650] [2021-12-06 23:28:07,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383978650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:28:07,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:28:07,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:28:07,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268762768] [2021-12-06 23:28:07,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:28:07,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:28:07,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:28:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:28:07,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:28:07,745 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 23:28:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:28:07,788 INFO L93 Difference]: Finished difference Result 145 states and 186 transitions. [2021-12-06 23:28:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:28:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2021-12-06 23:28:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:28:07,789 INFO L225 Difference]: With dead ends: 145 [2021-12-06 23:28:07,789 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 23:28:07,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:28:07,790 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:28:07,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 230 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:28:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 23:28:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 23:28:07,792 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 23:28:07,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 23:28:07,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2021-12-06 23:28:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:28:07,793 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:28:07,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 23:28:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 23:28:07,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 23:28:07,796 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:28:07,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:28:07,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validFINAL(lines 4715 4719) no Hoare annotation was computed. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2021-12-06 23:28:07,897 INFO L858 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_node_next_is_validENTRY(lines 4715 4719) the Hoare annotation is: true [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validFINAL(lines 4726 4730) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L858 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2021-12-06 23:28:07,898 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_node_prev_is_validENTRY(lines 4726 4730) the Hoare annotation is: true [2021-12-06 23:28:07,899 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-06 23:28:07,899 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-06 23:28:07,899 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 23:28:07,899 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-06 23:28:07,899 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-06 23:28:07,899 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-06 23:28:07,899 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-06 23:28:07,899 INFO L861 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2021-12-06 23:28:07,899 INFO L861 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2021-12-06 23:28:07,900 INFO L858 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2021-12-06 23:28:07,900 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeFINAL(lines 4909 4924) no Hoare annotation was computed. [2021-12-06 23:28:07,900 INFO L861 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2021-12-06 23:28:07,900 INFO L858 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2021-12-06 23:28:07,900 INFO L858 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2021-12-06 23:28:07,900 INFO L861 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2021-12-06 23:28:07,900 INFO L861 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2021-12-06 23:28:07,900 INFO L861 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2021-12-06 23:28:07,900 INFO L861 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2021-12-06 23:28:07,901 INFO L858 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2021-12-06 23:28:07,901 INFO L861 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2021-12-06 23:28:07,901 INFO L858 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2021-12-06 23:28:07,901 INFO L861 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2021-12-06 23:28:07,901 INFO L861 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2021-12-06 23:28:07,901 INFO L858 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2021-12-06 23:28:07,901 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_insert_beforeENTRY(lines 4909 4924) the Hoare annotation is: true [2021-12-06 23:28:07,901 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2021-12-06 23:28:07,902 INFO L854 garLoopResultBuilder]: At program point L4990(line 4990) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 1 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_~list#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2021-12-06 23:28:07,902 INFO L858 garLoopResultBuilder]: For program point L4994-1(line 4994) no Hoare annotation was computed. [2021-12-06 23:28:07,902 INFO L854 garLoopResultBuilder]: At program point L4990-1(line 4990) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (< 1 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_push_front_#t~ret402#1| 0) (< 0 |#StackHeapBarrier|)) [2021-12-06 23:28:07,902 INFO L858 garLoopResultBuilder]: For program point L7389-1(line 7389) no Hoare annotation was computed. [2021-12-06 23:28:07,902 INFO L858 garLoopResultBuilder]: For program point L4990-2(line 4990) no Hoare annotation was computed. [2021-12-06 23:28:07,902 INFO L854 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: false [2021-12-06 23:28:07,902 INFO L858 garLoopResultBuilder]: For program point L6754(lines 6754 6778) no Hoare annotation was computed. [2021-12-06 23:28:07,902 INFO L854 garLoopResultBuilder]: At program point L4995(line 4995) the Hoare annotation is: false [2021-12-06 23:28:07,902 INFO L854 garLoopResultBuilder]: At program point L4995-1(line 4995) the Hoare annotation is: false [2021-12-06 23:28:07,903 INFO L854 garLoopResultBuilder]: At program point L4991(lines 4991 4993) the Hoare annotation is: false [2021-12-06 23:28:07,903 INFO L854 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: false [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point L4991-1(lines 4991 4993) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point L4995-2(line 4995) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L854 garLoopResultBuilder]: At program point L7386(line 7386) the Hoare annotation is: false [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point L7390-1(line 7390) no Hoare annotation was computed. [2021-12-06 23:28:07,903 INFO L858 garLoopResultBuilder]: For program point L7386-2(line 7386) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L854 garLoopResultBuilder]: At program point L7386-1(line 7386) the Hoare annotation is: false [2021-12-06 23:28:07,904 INFO L858 garLoopResultBuilder]: For program point L7374(lines 7374 7391) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L858 garLoopResultBuilder]: For program point L6767-4(lines 6767 6774) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L854 garLoopResultBuilder]: At program point L6767-3(lines 6767 6774) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2021-12-06 23:28:07,904 INFO L858 garLoopResultBuilder]: For program point L6767-2(lines 6767 6774) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L858 garLoopResultBuilder]: For program point L6755-1(line 6755) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L858 garLoopResultBuilder]: For program point L4996-1(line 4996) no Hoare annotation was computed. [2021-12-06 23:28:07,904 INFO L854 garLoopResultBuilder]: At program point L6755(line 6755) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2021-12-06 23:28:07,904 INFO L854 garLoopResultBuilder]: At program point L4996(line 4996) the Hoare annotation is: false [2021-12-06 23:28:07,905 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 23:28:07,905 INFO L854 garLoopResultBuilder]: At program point L7387-1(line 7387) the Hoare annotation is: false [2021-12-06 23:28:07,905 INFO L854 garLoopResultBuilder]: At program point L7387(line 7387) the Hoare annotation is: false [2021-12-06 23:28:07,905 INFO L858 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2021-12-06 23:28:07,905 INFO L858 garLoopResultBuilder]: For program point L6756-1(line 6756) no Hoare annotation was computed. [2021-12-06 23:28:07,905 INFO L854 garLoopResultBuilder]: At program point L6756(line 6756) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2021-12-06 23:28:07,905 INFO L861 garLoopResultBuilder]: At program point L7392(line 7392) the Hoare annotation is: true [2021-12-06 23:28:07,905 INFO L858 garLoopResultBuilder]: For program point L7388-2(line 7388) no Hoare annotation was computed. [2021-12-06 23:28:07,905 INFO L854 garLoopResultBuilder]: At program point L7388-1(line 7388) the Hoare annotation is: false [2021-12-06 23:28:07,905 INFO L858 garLoopResultBuilder]: For program point L4989(lines 4989 4997) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L854 garLoopResultBuilder]: At program point L7388(line 7388) the Hoare annotation is: false [2021-12-06 23:28:07,906 INFO L854 garLoopResultBuilder]: At program point L4994(line 4994) the Hoare annotation is: false [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-06 23:28:07,906 INFO L858 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L854 garLoopResultBuilder]: At program point L4764(lines 4731 4765) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|)) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#res#1| 0)) [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L854 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|))) [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2021-12-06 23:28:07,907 INFO L858 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_is_validENTRY(lines 4691 4708) the Hoare annotation is: true [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L858 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2021-12-06 23:28:07,908 INFO L854 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|))) [2021-12-06 23:28:07,911 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 23:28:07,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:28:07,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:28:07 BoogieIcfgContainer [2021-12-06 23:28:07,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:28:07,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:28:07,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:28:07,930 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:28:07,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:28:04" (3/4) ... [2021-12-06 23:28:07,933 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 23:28:07,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2021-12-06 23:28:07,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-06 23:28:07,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2021-12-06 23:28:07,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2021-12-06 23:28:07,939 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 23:28:07,939 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 23:28:07,939 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2021-12-06 23:28:07,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-12-06 23:28:07,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-06 23:28:07,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 23:28:07,946 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 23:28:07,967 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown)) || \result == 0 [2021-12-06 23:28:07,997 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:28:07,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:28:07,998 INFO L158 Benchmark]: Toolchain (without parser) took 5417.71ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 66.4MB in the beginning and 119.1MB in the end (delta: -52.6MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2021-12-06 23:28:07,998 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:28:07,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1575.18ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 66.2MB in the beginning and 57.7MB in the end (delta: 8.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2021-12-06 23:28:07,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.93ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 51.8MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:28:07,999 INFO L158 Benchmark]: Boogie Preprocessor took 42.82ms. Allocated memory is still 113.2MB. Free memory was 51.8MB in the beginning and 48.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:28:07,999 INFO L158 Benchmark]: RCFGBuilder took 471.96ms. Allocated memory is still 113.2MB. Free memory was 48.7MB in the beginning and 53.9MB in the end (delta: -5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 23:28:07,999 INFO L158 Benchmark]: TraceAbstraction took 3158.06ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 53.9MB in the beginning and 35.5MB in the end (delta: 18.4MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2021-12-06 23:28:08,000 INFO L158 Benchmark]: Witness Printer took 67.18ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 35.5MB in the beginning and 119.1MB in the end (delta: -83.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-06 23:28:08,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1575.18ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 66.2MB in the beginning and 57.7MB in the end (delta: 8.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.93ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 51.8MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.82ms. Allocated memory is still 113.2MB. Free memory was 51.8MB in the beginning and 48.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 471.96ms. Allocated memory is still 113.2MB. Free memory was 48.7MB in the beginning and 53.9MB in the end (delta: -5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3158.06ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 53.9MB in the beginning and 35.5MB in the end (delta: 18.4MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Witness Printer took 67.18ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 35.5MB in the beginning and 119.1MB in the end (delta: -83.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * 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 8 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 320 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 1993 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1591 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 402 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 194 PreInvPairs, 204 NumberOfFragments, 143 HoareAnnotationTreeSize, 194 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1333 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 264/282 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: 4750]: Loop Invariant Derived loop invariant: ((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 4731]: Loop Invariant Derived loop invariant: (((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown)) || \result == 0 - InvariantResult [Line: 7392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6767]: Loop Invariant Derived loop invariant: (1 < to_add && !(list == 0)) && 0 < unknown-#StackHeapBarrier-unknown RESULT: Ultimate proved your program to be correct! [2021-12-06 23:28:08,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fadc883-58c0-408b-b308-c1a3ee3e4fcc/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