./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 [2021-12-16 03:13:47,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:13:47,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:13:47,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:13:47,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:13:47,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:13:47,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:13:47,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:13:47,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:13:47,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:13:47,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:13:47,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:13:47,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:13:47,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:13:47,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:13:47,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:13:47,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:13:47,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:13:47,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:13:47,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:13:47,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:13:47,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:13:47,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:13:47,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:13:47,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:13:47,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:13:47,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:13:47,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:13:47,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:13:47,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:13:47,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:13:47,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:13:47,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:13:47,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:13:47,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:13:47,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:13:47,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:13:47,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:13:47,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:13:47,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:13:47,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:13:47,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:13:47,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:13:47,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:13:47,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:13:47,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:13:47,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:13:47,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:13:47,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:13:47,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:13:47,661 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:13:47,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:13:47,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:13:47,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:13:47,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:13:47,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:13:47,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:13:47,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:13:47,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:13:47,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:13:47,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:13:47,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:13:47,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:13:47,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:13:47,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:13:47,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:13:47,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:13:47,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:13:47,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-12-16 03:13:47,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:13:47,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:13:47,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:13:47,885 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:13:47,885 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:13:47,886 INFO L432 ainManager$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 [2021-12-16 03:13:47,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c11d6b/5b83521de45c43f9a7b0580422de60ca/FLAG910bde721 [2021-12-16 03:13:48,461 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:13:48,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-16 03:13:48,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c11d6b/5b83521de45c43f9a7b0580422de60ca/FLAG910bde721 [2021-12-16 03:13:48,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c11d6b/5b83521de45c43f9a7b0580422de60ca [2021-12-16 03:13:48,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:13:48,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:13:48,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:13:48,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:13:48,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:13:48,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:13:48" (1/1) ... [2021-12-16 03:13:48,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b844ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:48, skipping insertion in model container [2021-12-16 03:13:48,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:13:48" (1/1) ... [2021-12-16 03:13:48,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:13:48,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:13:48,977 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] [2021-12-16 03:13:48,980 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] [2021-12-16 03:13:49,368 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-16 03:13:49,411 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,412 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,412 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,413 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,414 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,422 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,437 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,440 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,442 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,442 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,645 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-16 03:13:49,646 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-16 03:13:49,647 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-16 03:13:49,649 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-16 03:13:49,651 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-16 03:13:49,653 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-16 03:13:49,654 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-16 03:13:49,656 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-16 03:13:49,657 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-16 03:13:49,657 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-16 03:13:49,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,772 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,822 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,823 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,823 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:13:49,842 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:13:49,853 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] [2021-12-16 03:13:49,854 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] [2021-12-16 03:13:49,873 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-16 03:13:49,891 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,891 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,891 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,892 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,892 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,896 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,897 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,897 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,898 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,898 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:49,917 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-16 03:13:49,925 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-16 03:13:49,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-16 03:13:49,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-16 03:13:49,927 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-16 03:13:49,927 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-16 03:13:49,929 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-16 03:13:49,930 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-16 03:13:49,930 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-16 03:13:49,931 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-16 03:13:49,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:50,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:50,012 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:50,013 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:50,013 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:13:50,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:13:50,151 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:13:50,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50 WrapperNode [2021-12-16 03:13:50,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:13:50,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:13:50,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:13:50,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:13:50,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,297 INFO L137 Inliner]: procedures = 691, calls = 1681, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 847 [2021-12-16 03:13:50,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:13:50,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:13:50,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:13:50,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:13:50,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:13:50,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:13:50,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:13:50,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:13:50,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (1/1) ... [2021-12-16 03:13:50,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:13:50,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:50,423 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) [2021-12-16 03:13:50,451 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 [2021-12-16 03:13:50,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:13:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-16 03:13:50,479 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-16 03:13:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-16 03:13:50,479 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-16 03:13:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-16 03:13:50,480 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-16 03:13:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-16 03:13:50,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-16 03:13:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:13:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-16 03:13:50,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-16 03:13:50,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-16 03:13:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-16 03:13:50,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:13:50,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:13:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:13:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-16 03:13:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-16 03:13:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:13:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:13:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-16 03:13:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-16 03:13:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-16 03:13:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-16 03:13:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-16 03:13:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-16 03:13:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-16 03:13:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-16 03:13:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-16 03:13:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-16 03:13:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-16 03:13:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-16 03:13:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:13:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:13:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-16 03:13:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-16 03:13:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-16 03:13:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-16 03:13:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:13:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-16 03:13:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-16 03:13:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-16 03:13:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-16 03:13:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-16 03:13:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:13:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-16 03:13:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-16 03:13:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-12-16 03:13:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-12-16 03:13:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:13:50,765 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:13:50,767 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:13:51,289 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:13:51,295 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:13:51,295 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:13:51,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:13:51 BoogieIcfgContainer [2021-12-16 03:13:51,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:13:51,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:13:51,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:13:51,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:13:51,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:13:48" (1/3) ... [2021-12-16 03:13:51,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed3943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:13:51, skipping insertion in model container [2021-12-16 03:13:51,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:13:50" (2/3) ... [2021-12-16 03:13:51,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed3943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:13:51, skipping insertion in model container [2021-12-16 03:13:51,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:13:51" (3/3) ... [2021-12-16 03:13:51,302 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-12-16 03:13:51,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:13:51,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:13:51,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:13:51,336 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 [2021-12-16 03:13:51,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:13:51,349 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) [2021-12-16 03:13:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-16 03:13:51,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:51,358 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] [2021-12-16 03:13:51,358 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:51,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1870768140, now seen corresponding path program 1 times [2021-12-16 03:13:51,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:51,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981903678] [2021-12-16 03:13:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:51,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:13:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 03:13:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 03:13:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 03:13:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 03:13:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 03:13:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:13:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 03:13:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 03:13:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 03:13:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:13:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 03:13:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 03:13:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 03:13:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 03:13:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 03:13:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 03:13:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 03:13:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 03:13:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 03:13:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 03:13:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 03:13:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:13:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 03:13:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-16 03:13:52,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:13:52,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981903678] [2021-12-16 03:13:52,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981903678] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:13:52,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174733110] [2021-12-16 03:13:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:52,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:52,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:52,047 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) [2021-12-16 03:13:52,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:13:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:52,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 03:13:52,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-16 03:13:52,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:13:52,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174733110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:13:52,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:13:52,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-12-16 03:13:52,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630911825] [2021-12-16 03:13:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:13:52,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:13:52,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:13:52,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:13:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-16 03:13:52,843 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) [2021-12-16 03:13:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:13:53,139 INFO L93 Difference]: Finished difference Result 557 states and 840 transitions. [2021-12-16 03:13:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:13:53,141 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 [2021-12-16 03:13:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:13:53,158 INFO L225 Difference]: With dead ends: 557 [2021-12-16 03:13:53,159 INFO L226 Difference]: Without dead ends: 278 [2021-12-16 03:13:53,163 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 [2021-12-16 03:13:53,165 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 [2021-12-16 03:13:53,166 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] [2021-12-16 03:13:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-12-16 03:13:53,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-12-16 03:13:53,206 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) [2021-12-16 03:13:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 396 transitions. [2021-12-16 03:13:53,209 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 396 transitions. Word has length 146 [2021-12-16 03:13:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:13:53,210 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 396 transitions. [2021-12-16 03:13:53,210 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) [2021-12-16 03:13:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 396 transitions. [2021-12-16 03:13:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-16 03:13:53,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:53,213 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] [2021-12-16 03:13:53,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:13:53,449 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 [2021-12-16 03:13:53,451 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:53,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 265363754, now seen corresponding path program 1 times [2021-12-16 03:13:53,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:53,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752960953] [2021-12-16 03:13:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:53,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:53,494 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 03:13:53,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259441329] [2021-12-16 03:13:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:53,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:53,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:53,495 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) [2021-12-16 03:13:53,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:13:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:53,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 03:13:53,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-16 03:13:54,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:13:54,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:13:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752960953] [2021-12-16 03:13:54,123 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 03:13:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259441329] [2021-12-16 03:13:54,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259441329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:13:54,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:13:54,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:13:54,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856814145] [2021-12-16 03:13:54,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:13:54,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:13:54,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:13:54,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:13:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:13:54,126 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) [2021-12-16 03:13:54,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:13:54,156 INFO L93 Difference]: Finished difference Result 535 states and 784 transitions. [2021-12-16 03:13:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:13:54,157 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 [2021-12-16 03:13:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:13:54,159 INFO L225 Difference]: With dead ends: 535 [2021-12-16 03:13:54,159 INFO L226 Difference]: Without dead ends: 283 [2021-12-16 03:13:54,160 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 [2021-12-16 03:13:54,161 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 [2021-12-16 03:13:54,161 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] [2021-12-16 03:13:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-16 03:13:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 280. [2021-12-16 03:13:54,177 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) [2021-12-16 03:13:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 398 transitions. [2021-12-16 03:13:54,179 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 398 transitions. Word has length 176 [2021-12-16 03:13:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:13:54,179 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 398 transitions. [2021-12-16 03:13:54,179 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) [2021-12-16 03:13:54,179 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 398 transitions. [2021-12-16 03:13:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-16 03:13:54,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:54,182 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] [2021-12-16 03:13:54,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:13:54,415 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 [2021-12-16 03:13:54,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1664860694, now seen corresponding path program 1 times [2021-12-16 03:13:54,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:54,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531900315] [2021-12-16 03:13:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:54,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:54,451 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 03:13:54,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297018677] [2021-12-16 03:13:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:54,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:54,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:54,453 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) [2021-12-16 03:13:54,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 03:13:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:54,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 03:13:54,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-16 03:13:55,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:13:55,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:13:55,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531900315] [2021-12-16 03:13:55,170 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 03:13:55,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297018677] [2021-12-16 03:13:55,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297018677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:13:55,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:13:55,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 03:13:55,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709713086] [2021-12-16 03:13:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:13:55,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 03:13:55,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:13:55,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 03:13:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:13:55,177 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) [2021-12-16 03:13:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:13:55,607 INFO L93 Difference]: Finished difference Result 512 states and 726 transitions. [2021-12-16 03:13:55,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 03:13:55,608 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 [2021-12-16 03:13:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:13:55,611 INFO L225 Difference]: With dead ends: 512 [2021-12-16 03:13:55,611 INFO L226 Difference]: Without dead ends: 280 [2021-12-16 03:13:55,612 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 [2021-12-16 03:13:55,613 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 [2021-12-16 03:13:55,614 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] [2021-12-16 03:13:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-12-16 03:13:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-12-16 03:13:55,628 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) [2021-12-16 03:13:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 394 transitions. [2021-12-16 03:13:55,630 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 394 transitions. Word has length 176 [2021-12-16 03:13:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:13:55,631 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 394 transitions. [2021-12-16 03:13:55,631 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) [2021-12-16 03:13:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 394 transitions. [2021-12-16 03:13:55,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-16 03:13:55,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:55,633 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] [2021-12-16 03:13:55,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 03:13:55,847 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 [2021-12-16 03:13:55,848 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:55,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash -331838195, now seen corresponding path program 2 times [2021-12-16 03:13:55,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:55,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432836806] [2021-12-16 03:13:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:55,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:55,914 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 03:13:55,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360341798] [2021-12-16 03:13:55,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:13:55,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:55,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:55,932 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) [2021-12-16 03:13:55,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 03:13:56,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-16 03:13:56,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:13:56,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 03:13:56,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-12-16 03:13:56,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:13:56,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:13:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432836806] [2021-12-16 03:13:56,518 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 03:13:56,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360341798] [2021-12-16 03:13:56,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360341798] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:13:56,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:13:56,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:13:56,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155109852] [2021-12-16 03:13:56,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:13:56,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:13:56,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:13:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:13:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:13:56,520 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) [2021-12-16 03:13:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:13:56,544 INFO L93 Difference]: Finished difference Result 494 states and 684 transitions. [2021-12-16 03:13:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:13:56,545 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 [2021-12-16 03:13:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:13:56,566 INFO L225 Difference]: With dead ends: 494 [2021-12-16 03:13:56,566 INFO L226 Difference]: Without dead ends: 285 [2021-12-16 03:13:56,567 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 [2021-12-16 03:13:56,568 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 [2021-12-16 03:13:56,568 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] [2021-12-16 03:13:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-12-16 03:13:56,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-16 03:13:56,579 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) [2021-12-16 03:13:56,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 400 transitions. [2021-12-16 03:13:56,581 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 400 transitions. Word has length 191 [2021-12-16 03:13:56,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:13:56,581 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 400 transitions. [2021-12-16 03:13:56,582 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) [2021-12-16 03:13:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 400 transitions. [2021-12-16 03:13:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-16 03:13:56,583 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:56,583 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] [2021-12-16 03:13:56,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:13:56,813 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 [2021-12-16 03:13:56,814 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:56,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1595114899, now seen corresponding path program 1 times [2021-12-16 03:13:56,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:56,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796107998] [2021-12-16 03:13:56,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:56,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:56,854 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 03:13:56,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625818219] [2021-12-16 03:13:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:56,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:56,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:56,867 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) [2021-12-16 03:13:56,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 03:13:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:13:57,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 2862 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-16 03:13:57,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-12-16 03:13:57,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:13:57,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:13:57,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796107998] [2021-12-16 03:13:57,600 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 03:13:57,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625818219] [2021-12-16 03:13:57,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625818219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:13:57,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:13:57,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 03:13:57,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202754263] [2021-12-16 03:13:57,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:13:57,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 03:13:57,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:13:57,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 03:13:57,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:13:57,602 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) [2021-12-16 03:13:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:13:58,031 INFO L93 Difference]: Finished difference Result 516 states and 720 transitions. [2021-12-16 03:13:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:13:58,032 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 [2021-12-16 03:13:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:13:58,033 INFO L225 Difference]: With dead ends: 516 [2021-12-16 03:13:58,034 INFO L226 Difference]: Without dead ends: 285 [2021-12-16 03:13:58,034 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 [2021-12-16 03:13:58,035 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 [2021-12-16 03:13:58,035 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] [2021-12-16 03:13:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-12-16 03:13:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-16 03:13:58,046 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) [2021-12-16 03:13:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 394 transitions. [2021-12-16 03:13:58,048 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 394 transitions. Word has length 197 [2021-12-16 03:13:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:13:58,048 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 394 transitions. [2021-12-16 03:13:58,048 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) [2021-12-16 03:13:58,048 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 394 transitions. [2021-12-16 03:13:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-16 03:13:58,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:13:58,050 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] [2021-12-16 03:13:58,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 03:13:58,268 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 [2021-12-16 03:13:58,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:13:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:13:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash -895724094, now seen corresponding path program 2 times [2021-12-16 03:13:58,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:13:58,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321297325] [2021-12-16 03:13:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:13:58,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:13:58,312 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 03:13:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451248077] [2021-12-16 03:13:58,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:13:58,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:13:58,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:13:58,332 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) [2021-12-16 03:13:58,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 03:13:59,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 03:13:59,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:13:59,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 3003 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-16 03:13:59,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:13:59,594 INFO L354 Elim1Store]: treesize reduction 136, result has 50.2 percent of original size [2021-12-16 03:13:59,595 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 [2021-12-16 03:14:02,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:14:02,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321297325] [2021-12-16 03:14:02,038 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 03:14:02,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451248077] [2021-12-16 03:14:02,038 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Requested array size exceeds VM limit [2021-12-16 03:14:02,038 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:14:02,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-12-16 03:14:02,038 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-12-16 03:14:02,038 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-12-16 03:14:02,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 03:14:02,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-16 03:14:02,265 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 [2021-12-16 03:14:02,268 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-12-16 03:14:02,270 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:14:02,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:14:02 BoogieIcfgContainer [2021-12-16 03:14:02,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:14:02,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:14:02,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:14:02,315 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:14:02,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:13:51" (3/4) ... [2021-12-16 03:14:02,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 03:14:02,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:14:02,318 INFO L158 Benchmark]: Toolchain (without parser) took 13646.25ms. Allocated memory was 102.8MB in the beginning and 406.8MB in the end (delta: 304.1MB). Free memory was 67.5MB in the beginning and 153.4MB in the end (delta: -85.9MB). Peak memory consumption was 217.1MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,318 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:14:02,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1478.91ms. Allocated memory was 102.8MB in the beginning and 161.5MB in the end (delta: 58.7MB). Free memory was 67.2MB in the beginning and 97.2MB in the end (delta: -30.0MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 150.44ms. Allocated memory is still 161.5MB. Free memory was 97.2MB in the beginning and 87.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,331 INFO L158 Benchmark]: Boogie Preprocessor took 82.91ms. Allocated memory is still 161.5MB. Free memory was 87.6MB in the beginning and 80.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,332 INFO L158 Benchmark]: RCFGBuilder took 910.15ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 80.4MB in the beginning and 160.8MB in the end (delta: -80.4MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,332 INFO L158 Benchmark]: TraceAbstraction took 11016.96ms. Allocated memory was 243.3MB in the beginning and 406.8MB in the end (delta: 163.6MB). Free memory was 160.8MB in the beginning and 153.4MB in the end (delta: 7.5MB). Peak memory consumption was 170.0MB. Max. memory is 16.1GB. [2021-12-16 03:14:02,332 INFO L158 Benchmark]: Witness Printer took 2.46ms. Allocated memory is still 406.8MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:14:02,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1478.91ms. Allocated memory was 102.8MB in the beginning and 161.5MB in the end (delta: 58.7MB). Free memory was 67.2MB in the beginning and 97.2MB in the end (delta: -30.0MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 150.44ms. Allocated memory is still 161.5MB. Free memory was 97.2MB in the beginning and 87.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.91ms. Allocated memory is still 161.5MB. Free memory was 87.6MB in the beginning and 80.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 910.15ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 80.4MB in the beginning and 160.8MB in the end (delta: -80.4MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11016.96ms. Allocated memory was 243.3MB in the beginning and 406.8MB in the end (delta: 163.6MB). Free memory was 160.8MB in the beginning and 153.4MB in the end (delta: 7.5MB). Peak memory consumption was 170.0MB. Max. memory is 16.1GB. * Witness Printer took 2.46ms. Allocated memory is still 406.8MB. Free memory is still 153.4MB. 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: 10.9s, OverallIterations: 6, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1375 SdHoareTripleChecker+Valid, 1.0s 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, 4.9s 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 [2021-12-16 03:14:02,373 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 [2021-12-16 03:14:04,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:14:04,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:14:04,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:14:04,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:14:04,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:14:04,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:14:04,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:14:04,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:14:04,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:14:04,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:14:04,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:14:04,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:14:04,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:14:04,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:14:04,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:14:04,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:14:04,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:14:04,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:14:04,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:14:04,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:14:04,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:14:04,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:14:04,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:14:04,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:14:04,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:14:04,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:14:04,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:14:04,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:14:04,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:14:04,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:14:04,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:14:04,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:14:04,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:14:04,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:14:04,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:14:04,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:14:04,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:14:04,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:14:04,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:14:04,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:14:04,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-16 03:14:04,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:14:04,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:14:04,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:14:04,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:14:04,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:14:04,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:14:04,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:14:04,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:14:04,168 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:14:04,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-16 03:14:04,169 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:14:04,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:14:04,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:14:04,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:14:04,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:14:04,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:14:04,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:14:04,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-16 03:14:04,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-12-16 03:14:04,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:14:04,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:14:04,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:14:04,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:14:04,434 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:14:04,435 INFO L432 ainManager$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 [2021-12-16 03:14:04,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e1cc148/3063b511f9a0479ba4f37a9291ec061c/FLAG84ded5cb3 [2021-12-16 03:14:05,129 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:14:05,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-12-16 03:14:05,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e1cc148/3063b511f9a0479ba4f37a9291ec061c/FLAG84ded5cb3 [2021-12-16 03:14:05,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e1cc148/3063b511f9a0479ba4f37a9291ec061c [2021-12-16 03:14:05,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:14:05,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:14:05,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:14:05,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:14:05,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:14:05,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:05" (1/1) ... [2021-12-16 03:14:05,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550aa6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:05, skipping insertion in model container [2021-12-16 03:14:05,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:05" (1/1) ... [2021-12-16 03:14:05,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:14:05,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:14:05,806 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] [2021-12-16 03:14:05,810 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] [2021-12-16 03:14:06,239 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-16 03:14:06,292 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,293 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,294 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,297 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,298 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,308 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,309 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,310 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,311 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,312 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,510 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-16 03:14:06,512 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-16 03:14:06,513 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-16 03:14:06,518 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-16 03:14:06,520 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-16 03:14:06,523 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-16 03:14:06,523 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-16 03:14:06,526 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-16 03:14:06,528 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-16 03:14:06,529 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-16 03:14:06,640 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,644 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,680 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:14:06,706 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-16 03:14:06,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:14:06,755 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] [2021-12-16 03:14:06,756 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] [2021-12-16 03:14:06,792 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-16 03:14:06,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,809 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,814 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,815 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,818 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,818 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,858 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-16 03:14:06,858 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-16 03:14:06,859 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-16 03:14:06,859 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-16 03:14:06,860 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-16 03:14:06,860 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-16 03:14:06,860 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-16 03:14:06,860 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-16 03:14:06,861 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-16 03:14:06,861 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-16 03:14:06,889 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,892 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,914 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,918 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:14:06,942 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:14:06,956 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] [2021-12-16 03:14:06,957 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] [2021-12-16 03:14:06,976 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-16 03:14:06,987 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,987 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,987 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,998 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,998 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:06,999 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,018 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-16 03:14:07,019 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-16 03:14:07,019 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-16 03:14:07,019 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-16 03:14:07,020 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-16 03:14:07,021 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-16 03:14:07,021 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-16 03:14:07,021 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-16 03:14:07,022 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-16 03:14:07,022 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-16 03:14:07,047 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,050 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,061 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,062 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,062 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-16 03:14:07,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:14:07,223 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:14:07,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07 WrapperNode [2021-12-16 03:14:07,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:14:07,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:14:07,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:14:07,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:14:07,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,367 INFO L137 Inliner]: procedures = 711, calls = 1681, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 836 [2021-12-16 03:14:07,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:14:07,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:14:07,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:14:07,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:14:07,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:14:07,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:14:07,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:14:07,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:14:07,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (1/1) ... [2021-12-16 03:14:07,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:14:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:14:07,476 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) [2021-12-16 03:14:07,499 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 [2021-12-16 03:14:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:14:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-16 03:14:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-16 03:14:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-16 03:14:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-16 03:14:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-16 03:14:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-16 03:14:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-16 03:14:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-16 03:14:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-16 03:14:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-16 03:14:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-16 03:14:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-16 03:14:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-16 03:14:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-16 03:14:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-16 03:14:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:14:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:14:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:14:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-16 03:14:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-16 03:14:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:14:07,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:14:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-16 03:14:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-16 03:14:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-16 03:14:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-16 03:14:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-16 03:14:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-16 03:14:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-16 03:14:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-16 03:14:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-16 03:14:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-16 03:14:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-16 03:14:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-16 03:14:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-16 03:14:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-16 03:14:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:14:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:14:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-16 03:14:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-16 03:14:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-16 03:14:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-16 03:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-16 03:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-16 03:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-16 03:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-16 03:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-16 03:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-16 03:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-16 03:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-16 03:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-12-16 03:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-12-16 03:14:07,785 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:14:07,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:14:08,862 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:14:08,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:14:08,875 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:14:08,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:08 BoogieIcfgContainer [2021-12-16 03:14:08,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:14:08,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:14:08,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:14:08,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:14:08,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:14:05" (1/3) ... [2021-12-16 03:14:08,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@231e7760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:08, skipping insertion in model container [2021-12-16 03:14:08,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:07" (2/3) ... [2021-12-16 03:14:08,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@231e7760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:08, skipping insertion in model container [2021-12-16 03:14:08,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:08" (3/3) ... [2021-12-16 03:14:08,884 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-12-16 03:14:08,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:14:08,887 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:14:08,930 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:14:08,937 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 [2021-12-16 03:14:08,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:14:08,956 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) [2021-12-16 03:14:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-16 03:14:08,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:08,976 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] [2021-12-16 03:14:08,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1997174073, now seen corresponding path program 1 times [2021-12-16 03:14:08,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:08,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973867908] [2021-12-16 03:14:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:08,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:08,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:08,993 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) [2021-12-16 03:14:08,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-16 03:14:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:09,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-16 03:14:09,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-12-16 03:14:09,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:14:09,759 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:14:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973867908] [2021-12-16 03:14:09,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973867908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:14:09,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:14:09,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:14:09,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914299409] [2021-12-16 03:14:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:14:09,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 03:14:09,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:14:09,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 03:14:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 03:14:09,783 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) [2021-12-16 03:14:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:14:09,826 INFO L93 Difference]: Finished difference Result 547 states and 812 transitions. [2021-12-16 03:14:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 03:14:09,828 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 [2021-12-16 03:14:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:14:09,836 INFO L225 Difference]: With dead ends: 547 [2021-12-16 03:14:09,836 INFO L226 Difference]: Without dead ends: 272 [2021-12-16 03:14:09,841 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 [2021-12-16 03:14:09,843 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 [2021-12-16 03:14:09,844 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] [2021-12-16 03:14:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-12-16 03:14:09,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-12-16 03:14:09,912 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) [2021-12-16 03:14:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 375 transitions. [2021-12-16 03:14:09,920 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 375 transitions. Word has length 145 [2021-12-16 03:14:09,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:14:09,920 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 375 transitions. [2021-12-16 03:14:09,920 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) [2021-12-16 03:14:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 375 transitions. [2021-12-16 03:14:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-16 03:14:09,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:09,928 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] [2021-12-16 03:14:09,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-16 03:14:10,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:14:10,145 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:10,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1087446781, now seen corresponding path program 1 times [2021-12-16 03:14:10,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:10,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836047327] [2021-12-16 03:14:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:10,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:10,150 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) [2021-12-16 03:14:10,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-16 03:14:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:10,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:14:10,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-16 03:14:11,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:14:11,055 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:14:11,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836047327] [2021-12-16 03:14:11,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836047327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:14:11,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:14:11,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:14:11,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957004061] [2021-12-16 03:14:11,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:14:11,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:14:11,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:14:11,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:14:11,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:14:11,061 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) [2021-12-16 03:14:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:14:11,386 INFO L93 Difference]: Finished difference Result 520 states and 734 transitions. [2021-12-16 03:14:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:14:11,387 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 [2021-12-16 03:14:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:14:11,390 INFO L225 Difference]: With dead ends: 520 [2021-12-16 03:14:11,390 INFO L226 Difference]: Without dead ends: 274 [2021-12-16 03:14:11,392 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 [2021-12-16 03:14:11,392 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 43 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-12-16 03:14:11,392 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] [2021-12-16 03:14:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-12-16 03:14:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-12-16 03:14:11,420 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) [2021-12-16 03:14:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 392 transitions. [2021-12-16 03:14:11,423 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 392 transitions. Word has length 145 [2021-12-16 03:14:11,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:14:11,425 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 392 transitions. [2021-12-16 03:14:11,425 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) [2021-12-16 03:14:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 392 transitions. [2021-12-16 03:14:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-16 03:14:11,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:11,431 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] [2021-12-16 03:14:11,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-16 03:14:11,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:14:11,647 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:11,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:11,648 INFO L85 PathProgramCache]: Analyzing trace with hash 816259463, now seen corresponding path program 1 times [2021-12-16 03:14:11,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:11,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450534862] [2021-12-16 03:14:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:11,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:11,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:11,652 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) [2021-12-16 03:14:11,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-16 03:14:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:12,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 03:14:12,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-16 03:14:12,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:14:12,709 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:14:12,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450534862] [2021-12-16 03:14:12,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450534862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:14:12,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:14:12,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:14:12,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224604447] [2021-12-16 03:14:12,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:14:12,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:14:12,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:14:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:14:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:14:12,711 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) [2021-12-16 03:14:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:14:12,768 INFO L93 Difference]: Finished difference Result 527 states and 776 transitions. [2021-12-16 03:14:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:14:12,770 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 [2021-12-16 03:14:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:14:12,772 INFO L225 Difference]: With dead ends: 527 [2021-12-16 03:14:12,772 INFO L226 Difference]: Without dead ends: 279 [2021-12-16 03:14:12,773 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 [2021-12-16 03:14:12,774 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:14:12,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1112 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:14:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-16 03:14:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2021-12-16 03:14:12,786 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) [2021-12-16 03:14:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 394 transitions. [2021-12-16 03:14:12,788 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 394 transitions. Word has length 175 [2021-12-16 03:14:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:14:12,789 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 394 transitions. [2021-12-16 03:14:12,789 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) [2021-12-16 03:14:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 394 transitions. [2021-12-16 03:14:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-16 03:14:12,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:12,790 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] [2021-12-16 03:14:12,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-16 03:14:13,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:14:13,016 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:13,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1585278151, now seen corresponding path program 1 times [2021-12-16 03:14:13,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344490646] [2021-12-16 03:14:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:13,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:13,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:13,019 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) [2021-12-16 03:14:13,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-16 03:14:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:13,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 03:14:13,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:14,381 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 [2021-12-16 03:14:14,385 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 [2021-12-16 03:14:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 161 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-16 03:14:14,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:14:17,176 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-12-16 03:14:17,177 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 [2021-12-16 03:14:17,187 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-16 03:14:17,188 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 [2021-12-16 03:14:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-16 03:14:17,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:14:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344490646] [2021-12-16 03:14:17,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344490646] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:14:17,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 03:14:17,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 16 [2021-12-16 03:14:17,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825659141] [2021-12-16 03:14:17,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 03:14:17,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-16 03:14:17,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:14:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-16 03:14:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-12-16 03:14:17,270 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) [2021-12-16 03:14:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:14:20,431 INFO L93 Difference]: Finished difference Result 543 states and 791 transitions. [2021-12-16 03:14:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 03:14:20,432 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 [2021-12-16 03:14:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:14:20,434 INFO L225 Difference]: With dead ends: 543 [2021-12-16 03:14:20,434 INFO L226 Difference]: Without dead ends: 289 [2021-12-16 03:14:20,437 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 [2021-12-16 03:14:20,438 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 70 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:14:20,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 3470 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1134 Invalid, 0 Unknown, 101 Unchecked, 2.6s Time] [2021-12-16 03:14:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-16 03:14:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 279. [2021-12-16 03:14:20,468 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) [2021-12-16 03:14:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 414 transitions. [2021-12-16 03:14:20,470 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 414 transitions. Word has length 175 [2021-12-16 03:14:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:14:20,470 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 414 transitions. [2021-12-16 03:14:20,470 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) [2021-12-16 03:14:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 414 transitions. [2021-12-16 03:14:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-16 03:14:20,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:20,473 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] [2021-12-16 03:14:20,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:14:20,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:14:20,695 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:20,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018369, now seen corresponding path program 1 times [2021-12-16 03:14:20,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:20,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42242441] [2021-12-16 03:14:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:20,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:20,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:20,698 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) [2021-12-16 03:14:20,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-16 03:14:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:21,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 03:14:21,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-12-16 03:14:21,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:14:21,929 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:14:21,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42242441] [2021-12-16 03:14:21,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42242441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:14:21,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:14:21,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:14:21,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909604716] [2021-12-16 03:14:21,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:14:21,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:14:21,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:14:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:14:21,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:14:21,930 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) [2021-12-16 03:14:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:14:23,686 INFO L93 Difference]: Finished difference Result 537 states and 837 transitions. [2021-12-16 03:14:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:14:23,688 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 [2021-12-16 03:14:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:14:23,690 INFO L225 Difference]: With dead ends: 537 [2021-12-16 03:14:23,690 INFO L226 Difference]: Without dead ends: 284 [2021-12-16 03:14:23,691 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 [2021-12-16 03:14:23,692 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 7 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 03:14:23,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1437 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 03:14:23,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-12-16 03:14:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280. [2021-12-16 03:14:23,707 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) [2021-12-16 03:14:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 415 transitions. [2021-12-16 03:14:23,709 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 415 transitions. Word has length 177 [2021-12-16 03:14:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:14:23,709 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 415 transitions. [2021-12-16 03:14:23,709 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) [2021-12-16 03:14:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 415 transitions. [2021-12-16 03:14:23,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-16 03:14:23,711 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:14:23,711 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] [2021-12-16 03:14:23,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-16 03:14:23,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:14:23,936 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:14:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:14:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1890076353, now seen corresponding path program 1 times [2021-12-16 03:14:23,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:14:23,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223948885] [2021-12-16 03:14:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:14:23,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:14:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:14:23,939 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) [2021-12-16 03:14:23,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-16 03:14:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:14:24,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-16 03:14:24,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:14:27,190 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 [2021-12-16 03:14:27,203 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 [2021-12-16 03:14:27,215 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 [2021-12-16 03:14:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-16 03:14:27,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:14:30,984 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 [2021-12-16 03:14:30,993 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-16 03:14:31,493 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-12-16 03:14:31,493 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 [2021-12-16 03:14:39,086 WARN L227 SmtUtils]: Spent 7.20s 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) [2021-12-16 03:14:39,092 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-12-16 03:14:39,092 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