./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 23:43:08,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 23:43:08,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 23:43:08,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 23:43:08,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 23:43:08,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 23:43:08,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 23:43:08,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 23:43:08,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 23:43:08,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 23:43:08,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 23:43:08,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 23:43:08,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 23:43:08,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 23:43:08,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 23:43:08,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 23:43:08,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 23:43:08,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 23:43:08,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 23:43:08,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 23:43:08,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 23:43:08,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 23:43:08,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 23:43:08,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 23:43:08,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 23:43:08,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 23:43:08,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 23:43:08,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 23:43:08,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 23:43:08,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 23:43:08,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 23:43:08,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 23:43:08,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 23:43:08,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 23:43:08,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 23:43:08,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 23:43:08,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 23:43:08,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 23:43:08,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 23:43:08,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 23:43:08,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 23:43:08,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-17 23:43:08,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 23:43:08,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 23:43:08,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 23:43:08,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 23:43:08,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 23:43:08,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 23:43:08,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 23:43:08,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 23:43:08,640 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 23:43:08,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 23:43:08,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 23:43:08,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 23:43:08,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 23:43:08,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 23:43:08,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 23:43:08,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 23:43:08,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 23:43:08,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 23:43:08,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 23:43:08,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 23:43:08,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 23:43:08,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 23:43:08,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 23:43:08,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 23:43:08,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 23:43:08,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 23:43:08,645 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-12-17 23:43:08,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 23:43:08,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 23:43:08,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 23:43:08,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 23:43:08,870 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 23:43:08,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-17 23:43:08,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ca67435/05f9068e4a9e4721836b8765ad32746c/FLAG05303d73e [2021-12-17 23:43:09,459 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 23:43:09,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-17 23:43:09,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ca67435/05f9068e4a9e4721836b8765ad32746c/FLAG05303d73e [2021-12-17 23:43:09,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ca67435/05f9068e4a9e4721836b8765ad32746c [2021-12-17 23:43:09,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 23:43:09,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 23:43:09,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 23:43:09,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 23:43:09,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 23:43:09,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:43:09" (1/1) ... [2021-12-17 23:43:09,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21adf3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:09, skipping insertion in model container [2021-12-17 23:43:09,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:43:09" (1/1) ... [2021-12-17 23:43:09,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 23:43:09,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 23:43:10,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-12-17 23:43:10,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-12-17 23:43:10,689 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-17 23:43:10,751 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,751 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,751 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,752 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,752 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,758 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,758 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:10,937 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-17 23:43:10,938 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-17 23:43:10,938 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-17 23:43:10,939 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-17 23:43:10,940 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-17 23:43:10,942 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-17 23:43:10,943 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-17 23:43:10,943 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-17 23:43:10,944 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-17 23:43:10,944 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-17 23:43:11,010 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,015 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,099 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,099 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 23:43:11,117 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 23:43:11,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-12-17 23:43:11,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-12-17 23:43:11,143 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-17 23:43:11,151 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,153 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,157 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,158 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,159 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,160 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,161 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,161 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,162 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,163 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-17 23:43:11,199 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-17 23:43:11,200 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-17 23:43:11,200 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-17 23:43:11,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-17 23:43:11,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-17 23:43:11,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-17 23:43:11,203 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-17 23:43:11,203 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-17 23:43:11,205 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-17 23:43:11,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,237 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:11,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 23:43:11,418 INFO L208 MainTranslator]: Completed translation [2021-12-17 23:43:11,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11 WrapperNode [2021-12-17 23:43:11,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 23:43:11,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 23:43:11,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 23:43:11,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 23:43:11,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,523 INFO L137 Inliner]: procedures = 691, calls = 1681, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 847 [2021-12-17 23:43:11,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 23:43:11,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 23:43:11,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 23:43:11,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 23:43:11,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 23:43:11,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 23:43:11,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 23:43:11,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 23:43:11,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (1/1) ... [2021-12-17 23:43:11,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 23:43:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:11,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 23:43:11,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 23:43:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 23:43:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-17 23:43:11,690 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-17 23:43:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-17 23:43:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-17 23:43:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-17 23:43:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-17 23:43:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-17 23:43:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-17 23:43:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 23:43:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-17 23:43:11,692 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-17 23:43:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 23:43:11,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 23:43:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 23:43:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 23:43:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 23:43:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-17 23:43:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-17 23:43:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 23:43:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 23:43:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-17 23:43:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-17 23:43:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-17 23:43:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-17 23:43:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-17 23:43:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-17 23:43:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-17 23:43:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-17 23:43:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-17 23:43:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-17 23:43:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-17 23:43:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-17 23:43:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-17 23:43:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-17 23:43:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-17 23:43:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-17 23:43:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-17 23:43:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-17 23:43:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 23:43:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-17 23:43:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-17 23:43:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-17 23:43:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-17 23:43:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-17 23:43:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 23:43:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-17 23:43:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-17 23:43:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-12-17 23:43:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-12-17 23:43:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 23:43:11,956 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 23:43:11,957 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 23:43:12,407 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 23:43:12,412 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 23:43:12,413 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 23:43:12,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:43:12 BoogieIcfgContainer [2021-12-17 23:43:12,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 23:43:12,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 23:43:12,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 23:43:12,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 23:43:12,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:43:09" (1/3) ... [2021-12-17 23:43:12,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dd1eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:43:12, skipping insertion in model container [2021-12-17 23:43:12,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:11" (2/3) ... [2021-12-17 23:43:12,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dd1eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:43:12, skipping insertion in model container [2021-12-17 23:43:12,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:43:12" (3/3) ... [2021-12-17 23:43:12,420 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-12-17 23:43:12,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 23:43:12,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 23:43:12,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 23:43:12,462 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 [2021-12-17 23:43:12,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 23:43:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 164 states have (on average 1.2195121951219512) internal successors, (200), 165 states have internal predecessors, (200), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-12-17 23:43:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-17 23:43:12,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:12,502 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:12,503 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:12,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1870768140, now seen corresponding path program 1 times [2021-12-17 23:43:12,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:12,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646040094] [2021-12-17 23:43:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:12,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 23:43:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 23:43:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 23:43:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 23:43:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-17 23:43:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 23:43:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 23:43:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 23:43:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-17 23:43:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 23:43:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 23:43:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 23:43:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 23:43:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 23:43:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 23:43:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 23:43:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 23:43:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 23:43:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 23:43:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 23:43:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 23:43:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 23:43:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 23:43:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 23:43:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-17 23:43:13,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:13,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646040094] [2021-12-17 23:43:13,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646040094] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 23:43:13,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490770023] [2021-12-17 23:43:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:13,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:13,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:13,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:13,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 23:43:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:13,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 23:43:13,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-17 23:43:13,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:13,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490770023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:13,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 23:43:13,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-12-17 23:43:13,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358710375] [2021-12-17 23:43:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:13,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 23:43:13,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 23:43:14,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 23:43:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-17 23:43:14,007 INFO L87 Difference]: Start difference. First operand has 281 states, 164 states have (on average 1.2195121951219512) internal successors, (200), 165 states have internal predecessors, (200), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-17 23:43:14,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:14,340 INFO L93 Difference]: Finished difference Result 557 states and 840 transitions. [2021-12-17 23:43:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 23:43:14,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 146 [2021-12-17 23:43:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:14,351 INFO L225 Difference]: With dead ends: 557 [2021-12-17 23:43:14,351 INFO L226 Difference]: Without dead ends: 278 [2021-12-17 23:43:14,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-17 23:43:14,358 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 385 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:14,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1229 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 23:43:14,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-12-17 23:43:14,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-12-17 23:43:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 161 states have (on average 1.2111801242236024) internal successors, (195), 163 states have internal predecessors, (195), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-12-17 23:43:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 396 transitions. [2021-12-17 23:43:14,404 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 396 transitions. Word has length 146 [2021-12-17 23:43:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:14,405 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 396 transitions. [2021-12-17 23:43:14,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-17 23:43:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 396 transitions. [2021-12-17 23:43:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-17 23:43:14,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:14,408 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:14,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 23:43:14,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 23:43:14,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:14,623 INFO L85 PathProgramCache]: Analyzing trace with hash 265363754, now seen corresponding path program 1 times [2021-12-17 23:43:14,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:14,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193494120] [2021-12-17 23:43:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:14,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:14,675 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-17 23:43:14,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1995099909] [2021-12-17 23:43:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:14,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:14,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:14,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:14,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 23:43:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:15,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 23:43:15,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-17 23:43:15,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:15,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193494120] [2021-12-17 23:43:15,308 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-17 23:43:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995099909] [2021-12-17 23:43:15,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995099909] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:15,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:15,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 23:43:15,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911135472] [2021-12-17 23:43:15,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:15,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 23:43:15,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 23:43:15,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 23:43:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 23:43:15,311 INFO L87 Difference]: Start difference. First operand 278 states and 396 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:15,340 INFO L93 Difference]: Finished difference Result 535 states and 784 transitions. [2021-12-17 23:43:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 23:43:15,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 176 [2021-12-17 23:43:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:15,343 INFO L225 Difference]: With dead ends: 535 [2021-12-17 23:43:15,343 INFO L226 Difference]: Without dead ends: 283 [2021-12-17 23:43:15,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 23:43:15,345 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 10 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:15,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1124 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 23:43:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-17 23:43:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 280. [2021-12-17 23:43:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 165 states have internal predecessors, (197), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-12-17 23:43:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 398 transitions. [2021-12-17 23:43:15,371 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 398 transitions. Word has length 176 [2021-12-17 23:43:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:15,372 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 398 transitions. [2021-12-17 23:43:15,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 398 transitions. [2021-12-17 23:43:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-17 23:43:15,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:15,378 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:15,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:15,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 23:43:15,594 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1664860694, now seen corresponding path program 1 times [2021-12-17 23:43:15,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:15,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480000749] [2021-12-17 23:43:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:15,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:15,633 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-17 23:43:15,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563312105] [2021-12-17 23:43:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:15,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:15,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:15,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:15,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 23:43:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:16,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-17 23:43:16,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-17 23:43:16,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:16,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480000749] [2021-12-17 23:43:16,311 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-17 23:43:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563312105] [2021-12-17 23:43:16,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563312105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:16,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:16,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 23:43:16,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417298244] [2021-12-17 23:43:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:16,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 23:43:16,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 23:43:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 23:43:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 23:43:16,313 INFO L87 Difference]: Start difference. First operand 280 states and 398 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 23:43:16,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:16,764 INFO L93 Difference]: Finished difference Result 512 states and 726 transitions. [2021-12-17 23:43:16,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 23:43:16,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 176 [2021-12-17 23:43:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:16,767 INFO L225 Difference]: With dead ends: 512 [2021-12-17 23:43:16,768 INFO L226 Difference]: Without dead ends: 280 [2021-12-17 23:43:16,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-17 23:43:16,769 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 444 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:16,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 1574 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 23:43:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-12-17 23:43:16,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-12-17 23:43:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 165 states have internal predecessors, (197), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (104), 92 states have call predecessors, (104), 92 states have call successors, (104) [2021-12-17 23:43:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 394 transitions. [2021-12-17 23:43:16,805 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 394 transitions. Word has length 176 [2021-12-17 23:43:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:16,807 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 394 transitions. [2021-12-17 23:43:16,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 23:43:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 394 transitions. [2021-12-17 23:43:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-17 23:43:16,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:16,810 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:16,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-17 23:43:17,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:17,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -331838195, now seen corresponding path program 2 times [2021-12-17 23:43:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423013799] [2021-12-17 23:43:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:17,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:17,079 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-17 23:43:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017118480] [2021-12-17 23:43:17,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 23:43:17,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:17,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:17,081 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:17,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 23:43:17,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-17 23:43:17,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 23:43:17,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-17 23:43:17,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-12-17 23:43:17,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:17,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:17,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423013799] [2021-12-17 23:43:17,616 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-17 23:43:17,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017118480] [2021-12-17 23:43:17,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017118480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:17,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:17,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 23:43:17,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184567007] [2021-12-17 23:43:17,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:17,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 23:43:17,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 23:43:17,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 23:43:17,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 23:43:17,619 INFO L87 Difference]: Start difference. First operand 280 states and 394 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-17 23:43:17,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:17,666 INFO L93 Difference]: Finished difference Result 494 states and 684 transitions. [2021-12-17 23:43:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 23:43:17,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 191 [2021-12-17 23:43:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:17,669 INFO L225 Difference]: With dead ends: 494 [2021-12-17 23:43:17,669 INFO L226 Difference]: Without dead ends: 285 [2021-12-17 23:43:17,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 23:43:17,670 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 2 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:17,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1499 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 23:43:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-12-17 23:43:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-17 23:43:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 167 states have (on average 1.2035928143712575) internal successors, (201), 169 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (106), 93 states have call predecessors, (106), 92 states have call successors, (106) [2021-12-17 23:43:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 400 transitions. [2021-12-17 23:43:17,682 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 400 transitions. Word has length 191 [2021-12-17 23:43:17,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:17,682 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 400 transitions. [2021-12-17 23:43:17,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-17 23:43:17,683 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 400 transitions. [2021-12-17 23:43:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-17 23:43:17,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:17,684 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:17,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:17,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:17,905 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1595114899, now seen corresponding path program 1 times [2021-12-17 23:43:17,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:17,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666735225] [2021-12-17 23:43:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:17,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:17,955 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-17 23:43:17,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866876573] [2021-12-17 23:43:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:17,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:17,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:17,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:17,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 23:43:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:18,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2862 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 23:43:18,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-12-17 23:43:18,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:18,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:18,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666735225] [2021-12-17 23:43:18,603 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-17 23:43:18,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866876573] [2021-12-17 23:43:18,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866876573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:18,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:18,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 23:43:18,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036872852] [2021-12-17 23:43:18,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:18,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 23:43:18,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 23:43:18,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 23:43:18,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 23:43:18,605 INFO L87 Difference]: Start difference. First operand 285 states and 400 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-17 23:43:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:19,116 INFO L93 Difference]: Finished difference Result 516 states and 720 transitions. [2021-12-17 23:43:19,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 23:43:19,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 197 [2021-12-17 23:43:19,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:19,118 INFO L225 Difference]: With dead ends: 516 [2021-12-17 23:43:19,118 INFO L226 Difference]: Without dead ends: 285 [2021-12-17 23:43:19,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-12-17 23:43:19,119 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 494 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:19,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1781 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 23:43:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-12-17 23:43:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-17 23:43:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 167 states have (on average 1.2035928143712575) internal successors, (201), 169 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (100), 93 states have call predecessors, (100), 92 states have call successors, (100) [2021-12-17 23:43:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 394 transitions. [2021-12-17 23:43:19,134 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 394 transitions. Word has length 197 [2021-12-17 23:43:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:19,134 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 394 transitions. [2021-12-17 23:43:19,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-17 23:43:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 394 transitions. [2021-12-17 23:43:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-17 23:43:19,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:19,136 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:19,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-17 23:43:19,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:19,357 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash -895724094, now seen corresponding path program 2 times [2021-12-17 23:43:19,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 23:43:19,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375153794] [2021-12-17 23:43:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:19,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 23:43:19,405 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-17 23:43:19,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127849003] [2021-12-17 23:43:19,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 23:43:19,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:19,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:19,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 23:43:19,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 23:43:20,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 23:43:20,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 23:43:20,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 3003 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-17 23:43:20,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:20,703 INFO L354 Elim1Store]: treesize reduction 136, result has 50.2 percent of original size [2021-12-17 23:43:20,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 561 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 34 case distinctions, treesize of input 176 treesize of output 242 [2021-12-17 23:43:23,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 23:43:23,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375153794] [2021-12-17 23:43:23,315 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-17 23:43:23,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127849003] [2021-12-17 23:43:23,315 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Requested array size exceeds VM limit [2021-12-17 23:43:23,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:23,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-12-17 23:43:23,316 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-12-17 23:43:23,316 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-12-17 23:43:23,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 23:43:23,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-17 23:43:23,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 23:43:23,530 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-12-17 23:43:23,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 23:43:23,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:43:23 BoogieIcfgContainer [2021-12-17 23:43:23,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 23:43:23,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 23:43:23,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 23:43:23,561 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 23:43:23,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:43:12" (3/4) ... [2021-12-17 23:43:23,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 23:43:23,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 23:43:23,564 INFO L158 Benchmark]: Toolchain (without parser) took 13659.30ms. Allocated memory was 90.2MB in the beginning and 329.3MB in the end (delta: 239.1MB). Free memory was 51.7MB in the beginning and 96.6MB in the end (delta: -44.9MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,564 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 23:43:23,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1512.83ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 51.5MB in the beginning and 44.9MB in the end (delta: 6.6MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.38ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 44.9MB in the beginning and 108.9MB in the end (delta: -64.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,564 INFO L158 Benchmark]: Boogie Preprocessor took 97.00ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 101.4MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,565 INFO L158 Benchmark]: RCFGBuilder took 792.99ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 93.3MB in the end (delta: 8.1MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,565 INFO L158 Benchmark]: TraceAbstraction took 11144.96ms. Allocated memory was 159.4MB in the beginning and 329.3MB in the end (delta: 169.9MB). Free memory was 93.3MB in the beginning and 97.7MB in the end (delta: -4.4MB). Peak memory consumption was 166.5MB. Max. memory is 16.1GB. [2021-12-17 23:43:23,565 INFO L158 Benchmark]: Witness Printer took 2.40ms. Allocated memory is still 329.3MB. Free memory was 97.7MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 23:43:23,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1512.83ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 51.5MB in the beginning and 44.9MB in the end (delta: 6.6MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.38ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 44.9MB in the beginning and 108.9MB in the end (delta: -64.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.00ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 101.4MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 792.99ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 93.3MB in the end (delta: 8.1MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11144.96ms. Allocated memory was 159.4MB in the beginning and 329.3MB in the end (delta: 169.9MB). Free memory was 93.3MB in the beginning and 97.7MB in the end (delta: -4.4MB). Peak memory consumption was 166.5MB. Max. memory is 16.1GB. * Witness Printer took 2.40ms. Allocated memory is still 329.3MB. Free memory was 97.7MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7787, overapproximation of __builtin_umull_overflow at line 255, overapproximation of __builtin_uaddl_overflow at line 250. Possible FailurePath: [L2762-L2767] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7359] static __thread int tl_last_error = 0; [L7786-L7934] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7937-L7940] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7942-L7951] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7953-L7956] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7958-L7962] static _Bool s_common_library_initialized = 0 ; [L8009] CALL aws_array_list_set_at_harness() [L7976] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7979] CALL, EXPR aws_array_list_is_bounded(&list, 9223372036854775808U, 2) [L7005] EXPR list->item_size [L7004-L7005] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L7008] EXPR list->length [L7007-L7008] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L7009] return item_size_is_bounded && length_is_bounded; [L7979] RET, EXPR aws_array_list_is_bounded(&list, 9223372036854775808U, 2) [L7979] CALL assume_abort_if_not(aws_array_list_is_bounded(&list, 9223372036854775808U, 2)) [L211] COND FALSE !(!cond) [L7979] RET assume_abort_if_not(aws_array_list_is_bounded(&list, 9223372036854775808U, 2)) [L7980] CALL ensure_array_list_has_allocated_data_member(&list) [L7013] EXPR list->current_size [L7013] list->current_size == 0 && list->length == 0 [L7013] EXPR list->length [L7013] list->current_size == 0 && list->length == 0 [L7013] COND TRUE list->current_size == 0 && list->length == 0 [L7014] EXPR list->data [L7014-L7016] CALL assume_abort_if_not(list->data == ((void *)0) ) [L211] COND FALSE !(!cond) [L7014-L7016] RET assume_abort_if_not(list->data == ((void *)0) ) [L7017] CALL, EXPR can_fail_allocator() [L2786] return &s_can_fail_allocator_static; [L7017] RET, EXPR can_fail_allocator() [L7017] list->alloc = can_fail_allocator() [L7980] RET ensure_array_list_has_allocated_data_member(&list) [L7981] CALL, EXPR aws_array_list_is_valid(&list) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L3272] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] RET __CPROVER_overflow_mult(a, b) [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3272] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L7981] RET, EXPR aws_array_list_is_valid(&list) [L7981] CALL assume_abort_if_not(aws_array_list_is_valid(&list)) [L211] COND FALSE !(!cond) [L7981] RET assume_abort_if_not(aws_array_list_is_valid(&list)) [L7982] EXPR list.data [L7982-L7984] CALL assume_abort_if_not(list.data != ((void *)0) ) [L211] COND FALSE !(!cond) [L7982-L7984] RET assume_abort_if_not(list.data != ((void *)0) ) [L7985] size_t malloc_size; [L7986] EXPR list.item_size [L7986] CALL assume_abort_if_not(malloc_size <= list.item_size) [L211] COND FALSE !(!cond) [L7986] RET assume_abort_if_not(malloc_size <= list.item_size) [L7987] CALL, EXPR can_fail_malloc(malloc_size) [L2796] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L2796] RET, EXPR nondet_bool() [L2796-L2798] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L2796-L2798] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L7987] RET, EXPR can_fail_malloc(malloc_size) [L7987] void *val = can_fail_malloc(malloc_size); [L7988] size_t index; [L7991] struct aws_array_list old = list; [L7992] struct store_byte_from_buffer old_byte; [L7993] EXPR list.data [L7993] EXPR list.current_size [L7993] CALL save_byte_from_array((uint8_t *)list.data, list.current_size, &old_byte) [L7183] COND FALSE !(size > 0 && array && storage) [L7993] RET save_byte_from_array((uint8_t *)list.data, list.current_size, &old_byte) [L7996] CALL, EXPR aws_array_list_is_valid(&list) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L3272] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] RET __CPROVER_overflow_mult(a, b) [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3272] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L7996] RET, EXPR aws_array_list_is_valid(&list) [L7996] CALL assume_abort_if_not(aws_array_list_is_valid(&list)) [L211] COND FALSE !(!cond) [L7996] RET assume_abort_if_not(aws_array_list_is_valid(&list)) [L7997] EXPR val && ((((list.item_size)) == 0) || ((val))) [L7997] EXPR list.item_size [L7997] EXPR val && ((((list.item_size)) == 0) || ((val))) [L7997] CALL assume_abort_if_not(val && ((((list.item_size)) == 0) || ((val)))) [L211] COND FALSE !(!cond) [L7997] RET assume_abort_if_not(val && ((((list.item_size)) == 0) || ((val)))) [L8000] CALL aws_array_list_set_at(&list, val, index) [L3532] CALL, EXPR aws_array_list_is_valid(list) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L3272] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] RET __CPROVER_overflow_mult(a, b) [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3272] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3532] RET, EXPR aws_array_list_is_valid(list) [L3532] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L3532] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L3533] EXPR val && ((((list->item_size)) == 0) || ((val))) [L3533] EXPR list->item_size [L3533] EXPR val && ((((list->item_size)) == 0) || ((val))) [L3533] CALL assume_abort_if_not((val && ((((list->item_size)) == 0) || ((val))))) [L211] COND FALSE !(!cond) [L3533] RET assume_abort_if_not((val && ((((list->item_size)) == 0) || ((val))))) [L3537] CALL aws_array_list_ensure_capacity(list, index) [L7512] CALL, EXPR aws_array_list_is_valid(list) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L3272] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] RET __CPROVER_overflow_mult(a, b) [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3272] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L7512] RET, EXPR aws_array_list_is_valid(list) [L7512] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L7512] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L7513] size_t necessary_size; [L7514] CALL aws_array_list_calc_necessary_size(list, index, &necessary_size) [L7411] CALL, EXPR aws_array_list_is_valid(list) [L3263] COND TRUE !list [L3264-L3266] return 0 ; [L7411] RET, EXPR aws_array_list_is_valid(list) [L7411] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L7411] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L7412] size_t index_inc; [L7413] CALL aws_add_size_checked(index, 1, &index_inc) [L2615] CALL, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2540] CALL __CPROVER_overflow_plus(a, b) [L249] unsigned long c; [L250] return __builtin_uaddl_overflow(a, b, &c); [L250] return __builtin_uaddl_overflow(a, b, &c); [L2540] RET __CPROVER_overflow_plus(a, b) [L2540] COND TRUE __CPROVER_overflow_plus(a, b) [L2541] CALL, EXPR aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED) [L1996] CALL aws_raise_error_private(err) [L7366] tl_last_error = err [L1996] RET aws_raise_error_private(err) [L1998] return (-1); [L2541] RET, EXPR aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED) [L2541] return aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED); [L2615] RET, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2615] return aws_add_u64_checked(a, b, (uint64_t *)r); [L7413] RET aws_add_size_checked(index, 1, &index_inc) [L7413] COND TRUE aws_add_size_checked(index, 1, &index_inc) [L7414] CALL, EXPR aws_array_list_is_valid(list) [L3263] COND TRUE !list [L3264-L3266] return 0 ; [L7414] RET, EXPR aws_array_list_is_valid(list) [L7414] CALL __VERIFIER_assert((aws_array_list_is_valid(list))) [L223] COND TRUE !cond [L223] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 281 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 6, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1375 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1335 mSDsluCounter, 7207 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5555 mSDsCounter, 482 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1219 IncrementalHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 482 mSolverCounterUnsat, 1652 mSDtfsCounter, 1219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 953 GetRequests, 909 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=4, InterpolantAutomatonStates: 33, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1244 NumberOfCodeBlocks, 1086 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 1378 SizeOfPredicates, 12 NumberOfNonLiveVariables, 15642 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1785/1800 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-17 23:43:23,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 23:43:25,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 23:43:25,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 23:43:25,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 23:43:25,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 23:43:25,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 23:43:25,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 23:43:25,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 23:43:25,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 23:43:25,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 23:43:25,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 23:43:25,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 23:43:25,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 23:43:25,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 23:43:25,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 23:43:25,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 23:43:25,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 23:43:25,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 23:43:25,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 23:43:25,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 23:43:25,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 23:43:25,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 23:43:25,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 23:43:25,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 23:43:25,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 23:43:25,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 23:43:25,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 23:43:25,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 23:43:25,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 23:43:25,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 23:43:25,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 23:43:25,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 23:43:25,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 23:43:25,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 23:43:25,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 23:43:25,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 23:43:25,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 23:43:25,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 23:43:25,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 23:43:25,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 23:43:25,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 23:43:25,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-17 23:43:25,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 23:43:25,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 23:43:25,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 23:43:25,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 23:43:25,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 23:43:25,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 23:43:25,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 23:43:25,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 23:43:25,374 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 23:43:25,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 23:43:25,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 23:43:25,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 23:43:25,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 23:43:25,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 23:43:25,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 23:43:25,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 23:43:25,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 23:43:25,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 23:43:25,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 23:43:25,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 23:43:25,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 23:43:25,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 23:43:25,379 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-12-17 23:43:25,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 23:43:25,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 23:43:25,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 23:43:25,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 23:43:25,669 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 23:43:25,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-17 23:43:25,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f351b023/82ffe40b0a4c455db96b3ab9c97ef453/FLAG927ae5ca0 [2021-12-17 23:43:26,337 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 23:43:26,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-17 23:43:26,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f351b023/82ffe40b0a4c455db96b3ab9c97ef453/FLAG927ae5ca0 [2021-12-17 23:43:26,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f351b023/82ffe40b0a4c455db96b3ab9c97ef453 [2021-12-17 23:43:26,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 23:43:26,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 23:43:26,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 23:43:26,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 23:43:26,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 23:43:26,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:43:26" (1/1) ... [2021-12-17 23:43:26,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4976f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:26, skipping insertion in model container [2021-12-17 23:43:26,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:43:26" (1/1) ... [2021-12-17 23:43:26,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 23:43:26,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 23:43:27,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-12-17 23:43:27,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-12-17 23:43:27,609 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-17 23:43:27,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,680 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,680 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,681 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,692 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,692 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,693 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,693 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,694 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,695 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,695 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,695 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,895 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-17 23:43:27,896 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-17 23:43:27,896 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-17 23:43:27,897 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-17 23:43:27,898 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-17 23:43:27,898 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-17 23:43:27,898 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-17 23:43:27,899 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-17 23:43:27,899 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-17 23:43:27,900 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-17 23:43:27,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:27,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,015 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,018 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,018 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 23:43:28,045 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-17 23:43:28,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 23:43:28,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-12-17 23:43:28,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-12-17 23:43:28,084 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-17 23:43:28,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,098 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,099 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,099 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,101 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,101 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,101 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,122 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-17 23:43:28,123 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-17 23:43:28,123 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-17 23:43:28,124 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-17 23:43:28,124 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-17 23:43:28,124 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-17 23:43:28,125 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-17 23:43:28,125 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-17 23:43:28,125 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-17 23:43:28,126 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-17 23:43:28,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,156 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,178 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 23:43:28,198 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 23:43:28,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-12-17 23:43:28,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-12-17 23:43:28,222 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-17 23:43:28,230 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,230 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,252 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-17 23:43:28,253 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-17 23:43:28,253 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-17 23:43:28,254 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-17 23:43:28,254 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-17 23:43:28,255 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-17 23:43:28,255 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-17 23:43:28,256 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-17 23:43:28,256 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-17 23:43:28,257 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-17 23:43:28,276 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,280 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,304 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,307 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,307 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-17 23:43:28,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 23:43:28,503 INFO L208 MainTranslator]: Completed translation [2021-12-17 23:43:28,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28 WrapperNode [2021-12-17 23:43:28,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 23:43:28,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 23:43:28,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 23:43:28,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 23:43:28,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,665 INFO L137 Inliner]: procedures = 711, calls = 1681, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 836 [2021-12-17 23:43:28,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 23:43:28,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 23:43:28,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 23:43:28,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 23:43:28,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 23:43:28,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 23:43:28,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 23:43:28,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 23:43:28,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (1/1) ... [2021-12-17 23:43:28,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 23:43:28,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 23:43:28,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 23:43:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 23:43:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-17 23:43:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-17 23:43:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-17 23:43:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-17 23:43:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-17 23:43:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-17 23:43:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 23:43:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-17 23:43:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-17 23:43:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-17 23:43:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-17 23:43:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-17 23:43:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-17 23:43:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 23:43:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 23:43:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 23:43:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 23:43:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 23:43:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-17 23:43:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-17 23:43:28,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 23:43:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 23:43:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 23:43:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-17 23:43:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-17 23:43:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-17 23:43:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-17 23:43:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-17 23:43:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-17 23:43:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-17 23:43:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-17 23:43:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-17 23:43:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-17 23:43:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-17 23:43:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-17 23:43:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-17 23:43:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-17 23:43:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-17 23:43:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-17 23:43:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-17 23:43:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-17 23:43:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-17 23:43:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-17 23:43:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-17 23:43:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-17 23:43:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-17 23:43:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-17 23:43:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-17 23:43:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-17 23:43:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-17 23:43:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-17 23:43:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-17 23:43:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-12-17 23:43:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-12-17 23:43:29,044 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 23:43:29,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 23:43:30,243 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 23:43:30,256 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 23:43:30,256 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 23:43:30,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:43:30 BoogieIcfgContainer [2021-12-17 23:43:30,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 23:43:30,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 23:43:30,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 23:43:30,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 23:43:30,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:43:26" (1/3) ... [2021-12-17 23:43:30,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4f545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:43:30, skipping insertion in model container [2021-12-17 23:43:30,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:43:28" (2/3) ... [2021-12-17 23:43:30,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4f545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:43:30, skipping insertion in model container [2021-12-17 23:43:30,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:43:30" (3/3) ... [2021-12-17 23:43:30,265 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-12-17 23:43:30,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 23:43:30,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 23:43:30,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 23:43:30,316 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 [2021-12-17 23:43:30,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 23:43:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 160 states have (on average 1.225) internal successors, (196), 161 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-12-17 23:43:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-17 23:43:30,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:30,350 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:30,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1997174073, now seen corresponding path program 1 times [2021-12-17 23:43:30,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:30,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161395237] [2021-12-17 23:43:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:30,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:30,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:30,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:30,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 23:43:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:30,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 23:43:31,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-12-17 23:43:31,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:31,245 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 23:43:31,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161395237] [2021-12-17 23:43:31,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161395237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:31,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:31,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 23:43:31,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234549402] [2021-12-17 23:43:31,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:31,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 23:43:31,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 23:43:31,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 23:43:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 23:43:31,284 INFO L87 Difference]: Start difference. First operand has 277 states, 160 states have (on average 1.225) internal successors, (196), 161 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-17 23:43:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:31,320 INFO L93 Difference]: Finished difference Result 547 states and 812 transitions. [2021-12-17 23:43:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 23:43:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145 [2021-12-17 23:43:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:31,336 INFO L225 Difference]: With dead ends: 547 [2021-12-17 23:43:31,336 INFO L226 Difference]: Without dead ends: 272 [2021-12-17 23:43:31,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 23:43:31,346 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:31,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 23:43:31,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-12-17 23:43:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-12-17 23:43:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 156 states have (on average 1.2179487179487178) internal successors, (190), 157 states have internal predecessors, (190), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2021-12-17 23:43:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 375 transitions. [2021-12-17 23:43:31,412 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 375 transitions. Word has length 145 [2021-12-17 23:43:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:31,413 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 375 transitions. [2021-12-17 23:43:31,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-17 23:43:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 375 transitions. [2021-12-17 23:43:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-17 23:43:31,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:31,416 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:31,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:31,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 23:43:31,624 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:31,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1087446781, now seen corresponding path program 1 times [2021-12-17 23:43:31,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:31,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983246271] [2021-12-17 23:43:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:31,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:31,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:31,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 23:43:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:32,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 23:43:32,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-17 23:43:32,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:32,557 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 23:43:32,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983246271] [2021-12-17 23:43:32,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983246271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:32,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:32,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 23:43:32,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211108961] [2021-12-17 23:43:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:32,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 23:43:32,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 23:43:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 23:43:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 23:43:32,560 INFO L87 Difference]: Start difference. First operand 272 states and 375 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-17 23:43:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:32,940 INFO L93 Difference]: Finished difference Result 520 states and 734 transitions. [2021-12-17 23:43:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 23:43:32,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 145 [2021-12-17 23:43:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:32,945 INFO L225 Difference]: With dead ends: 520 [2021-12-17 23:43:32,945 INFO L226 Difference]: Without dead ends: 274 [2021-12-17 23:43:32,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 23:43:32,947 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 43 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:32,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 1281 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 23:43:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-12-17 23:43:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-12-17 23:43:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 157 states have (on average 1.21656050955414) internal successors, (191), 159 states have internal predecessors, (191), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-12-17 23:43:32,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 392 transitions. [2021-12-17 23:43:32,966 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 392 transitions. Word has length 145 [2021-12-17 23:43:32,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:32,966 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 392 transitions. [2021-12-17 23:43:32,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-17 23:43:32,966 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 392 transitions. [2021-12-17 23:43:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-17 23:43:32,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:32,968 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:32,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:33,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 23:43:33,181 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash 816259463, now seen corresponding path program 1 times [2021-12-17 23:43:33,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:33,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807002336] [2021-12-17 23:43:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:33,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:33,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:33,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 23:43:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:34,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 23:43:34,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-17 23:43:34,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:34,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 23:43:34,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807002336] [2021-12-17 23:43:34,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807002336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:34,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:34,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 23:43:34,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640575960] [2021-12-17 23:43:34,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:34,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 23:43:34,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 23:43:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 23:43:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 23:43:34,320 INFO L87 Difference]: Start difference. First operand 274 states and 392 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:34,401 INFO L93 Difference]: Finished difference Result 527 states and 776 transitions. [2021-12-17 23:43:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 23:43:34,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 175 [2021-12-17 23:43:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:34,405 INFO L225 Difference]: With dead ends: 527 [2021-12-17 23:43:34,406 INFO L226 Difference]: Without dead ends: 279 [2021-12-17 23:43:34,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 23:43:34,410 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 10 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:34,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1112 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 23:43:34,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-17 23:43:34,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2021-12-17 23:43:34,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 161 states have internal predecessors, (193), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-12-17 23:43:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 394 transitions. [2021-12-17 23:43:34,445 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 394 transitions. Word has length 175 [2021-12-17 23:43:34,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:34,446 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 394 transitions. [2021-12-17 23:43:34,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:34,446 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 394 transitions. [2021-12-17 23:43:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-17 23:43:34,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:34,448 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:34,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:34,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 23:43:34,659 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1585278151, now seen corresponding path program 1 times [2021-12-17 23:43:34,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:34,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000441533] [2021-12-17 23:43:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:34,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:34,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:34,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:34,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 23:43:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:35,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-17 23:43:35,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:36,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-17 23:43:36,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-17 23:43:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 161 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-17 23:43:36,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 23:43:38,977 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-12-17 23:43:38,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2021-12-17 23:43:38,995 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-17 23:43:38,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2021-12-17 23:43:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-17 23:43:39,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 23:43:39,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000441533] [2021-12-17 23:43:39,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000441533] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 23:43:39,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 23:43:39,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 16 [2021-12-17 23:43:39,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041207616] [2021-12-17 23:43:39,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 23:43:39,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-17 23:43:39,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 23:43:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-17 23:43:39,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-12-17 23:43:39,078 INFO L87 Difference]: Start difference. First operand 276 states and 394 transitions. Second operand has 16 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (52), 3 states have call predecessors, (52), 5 states have return successors, (50), 6 states have call predecessors, (50), 7 states have call successors, (50) [2021-12-17 23:43:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:42,622 INFO L93 Difference]: Finished difference Result 543 states and 791 transitions. [2021-12-17 23:43:42,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 23:43:42,623 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (52), 3 states have call predecessors, (52), 5 states have return successors, (50), 6 states have call predecessors, (50), 7 states have call successors, (50) Word has length 175 [2021-12-17 23:43:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:42,625 INFO L225 Difference]: With dead ends: 543 [2021-12-17 23:43:42,625 INFO L226 Difference]: Without dead ends: 289 [2021-12-17 23:43:42,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 334 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2021-12-17 23:43:42,628 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 70 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:42,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 3470 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1134 Invalid, 0 Unknown, 101 Unchecked, 3.0s Time] [2021-12-17 23:43:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-17 23:43:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 279. [2021-12-17 23:43:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 161 states have (on average 1.2111801242236024) internal successors, (195), 164 states have internal predecessors, (195), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (126), 92 states have call predecessors, (126), 92 states have call successors, (126) [2021-12-17 23:43:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 414 transitions. [2021-12-17 23:43:42,639 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 414 transitions. Word has length 175 [2021-12-17 23:43:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:42,639 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 414 transitions. [2021-12-17 23:43:42,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (52), 3 states have call predecessors, (52), 5 states have return successors, (50), 6 states have call predecessors, (50), 7 states have call successors, (50) [2021-12-17 23:43:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 414 transitions. [2021-12-17 23:43:42,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-17 23:43:42,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:42,641 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:42,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:42,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 23:43:42,859 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:42,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018369, now seen corresponding path program 1 times [2021-12-17 23:43:42,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:42,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703353295] [2021-12-17 23:43:42,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:42,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:42,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:42,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 23:43:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:43,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 23:43:43,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-17 23:43:44,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 23:43:44,115 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 23:43:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703353295] [2021-12-17 23:43:44,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703353295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 23:43:44,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 23:43:44,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 23:43:44,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003703331] [2021-12-17 23:43:44,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 23:43:44,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 23:43:44,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 23:43:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 23:43:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 23:43:44,116 INFO L87 Difference]: Start difference. First operand 279 states and 414 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 23:43:46,051 INFO L93 Difference]: Finished difference Result 537 states and 837 transitions. [2021-12-17 23:43:46,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 23:43:46,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2021-12-17 23:43:46,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 23:43:46,056 INFO L225 Difference]: With dead ends: 537 [2021-12-17 23:43:46,056 INFO L226 Difference]: Without dead ends: 284 [2021-12-17 23:43:46,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 23:43:46,057 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 7 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 23:43:46,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1437 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 23:43:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-12-17 23:43:46,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280. [2021-12-17 23:43:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 162 states have (on average 1.2098765432098766) internal successors, (196), 165 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (126), 92 states have call predecessors, (126), 92 states have call successors, (126) [2021-12-17 23:43:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 415 transitions. [2021-12-17 23:43:46,068 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 415 transitions. Word has length 177 [2021-12-17 23:43:46,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 23:43:46,068 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 415 transitions. [2021-12-17 23:43:46,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 23:43:46,068 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 415 transitions. [2021-12-17 23:43:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-17 23:43:46,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 23:43:46,070 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 23:43:46,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 23:43:46,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 23:43:46,287 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 23:43:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 23:43:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1890076353, now seen corresponding path program 1 times [2021-12-17 23:43:46,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 23:43:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172138766] [2021-12-17 23:43:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 23:43:46,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 23:43:46,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 23:43:46,290 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 23:43:46,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 23:43:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 23:43:47,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-17 23:43:47,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 23:43:49,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 36 [2021-12-17 23:43:49,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-12-17 23:43:49,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-12-17 23:43:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-17 23:43:49,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 23:43:52,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-17 23:43:52,924 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-17 23:43:53,493 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-12-17 23:43:53,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 131 treesize of output 1 [2021-12-17 23:44:00,941 WARN L227 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 527 DAG size of output: 273 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-17 23:44:00,944 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-12-17 23:44:00,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771 Killed by 15