./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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_swap_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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:00:31,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:00:31,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:00:31,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:00:31,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:00:31,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:00:31,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:00:31,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:00:31,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:00:31,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:00:31,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:00:31,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:00:31,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:00:31,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:00:31,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:00:31,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:00:31,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:00:31,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:00:31,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:00:31,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:00:31,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:00:31,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:00:31,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:00:31,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:00:31,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:00:31,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:00:31,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:00:31,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:00:31,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:00:31,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:00:31,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:00:31,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:00:31,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:00:31,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:00:31,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:00:31,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:00:31,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:00:31,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:00:31,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:00:31,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:00:31,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:00:31,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:00:31,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:00:31,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:00:31,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:00:31,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:00:31,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:00:31,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:00:31,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:00:31,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:00:31,726 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:00:31,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:00:31,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:00:31,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:00:31,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:00:31,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:00:31,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:00:31,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:00:31,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:00:31,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:00:31,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:00:31,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:00:31,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:00:31,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-12-14 17:00:31,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:00:31,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:00:31,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:00:31,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:00:31,943 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:00:31,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-12-14 17:00:31,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b5a3c60/416fd75e70174c24907825dbaaccebe2/FLAG3c37fff96 [2021-12-14 17:00:32,589 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:00:32,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-12-14 17:00:32,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b5a3c60/416fd75e70174c24907825dbaaccebe2/FLAG3c37fff96 [2021-12-14 17:00:33,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b5a3c60/416fd75e70174c24907825dbaaccebe2 [2021-12-14 17:00:33,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:00:33,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:00:33,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:00:33,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:00:33,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:00:33,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:00:33" (1/1) ... [2021-12-14 17:00:33,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719a77d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:33, skipping insertion in model container [2021-12-14 17:00:33,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:00:33" (1/1) ... [2021-12-14 17:00:33,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:00:33,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:00:33,320 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_swap_harness.i[4493,4506] [2021-12-14 17:00:33,326 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_swap_harness.i[4553,4566] [2021-12-14 17:00:33,861 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 17:00:33,900 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,900 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,901 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,902 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,903 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,911 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,913 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,914 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,915 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,916 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,916 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:33,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,097 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 17:00:34,098 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 17:00:34,099 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 17:00:34,099 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 17:00:34,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 17:00:34,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 17:00:34,106 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 17:00:34,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 17:00:34,109 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 17:00:34,110 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 17:00:34,201 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,201 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,203 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,207 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:00:34,252 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:00:34,260 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_swap_harness.i[4493,4506] [2021-12-14 17:00:34,261 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_swap_harness.i[4553,4566] [2021-12-14 17:00:34,280 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 17:00:34,289 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,290 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,290 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,309 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,309 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,322 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,322 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,323 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,323 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,342 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 17:00:34,345 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 17:00:34,345 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 17:00:34,346 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 17:00:34,347 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 17:00:34,347 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 17:00:34,348 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 17:00:34,348 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 17:00:34,348 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 17:00:34,349 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 17:00:34,368 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,368 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,369 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,372 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:00:34,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:00:34,520 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:00:34,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34 WrapperNode [2021-12-14 17:00:34,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:00:34,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:00:34,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:00:34,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:00:34,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,639 INFO L137 Inliner]: procedures = 691, calls = 1682, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 649 [2021-12-14 17:00:34,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:00:34,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:00:34,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:00:34,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:00:34,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:00:34,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:00:34,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:00:34,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:00:34,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (1/1) ... [2021-12-14 17:00:34,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:00:34,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:00:34,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:00:34,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:00:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:00:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-14 17:00:34,794 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-14 17:00:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-14 17:00:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-14 17:00:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-14 17:00:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-14 17:00:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:00:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-14 17:00:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-14 17:00:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-14 17:00:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-14 17:00:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:00:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:00:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:00:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-14 17:00:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-14 17:00:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:00:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:00:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-14 17:00:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-14 17:00:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-14 17:00:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-14 17:00:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-14 17:00:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-14 17:00:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:00:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:00:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-14 17:00:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-14 17:00:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:00:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:00:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:00:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-12-14 17:00:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-12-14 17:00:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-14 17:00:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-14 17:00:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-14 17:00:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-14 17:00:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:00:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-14 17:00:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-14 17:00:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:00:35,030 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:00:35,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:00:35,565 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:00:35,573 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:00:35,573 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:00:35,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:00:35 BoogieIcfgContainer [2021-12-14 17:00:35,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:00:35,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:00:35,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:00:35,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:00:35,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:00:33" (1/3) ... [2021-12-14 17:00:35,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647f3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:00:35, skipping insertion in model container [2021-12-14 17:00:35,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:00:34" (2/3) ... [2021-12-14 17:00:35,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647f3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:00:35, skipping insertion in model container [2021-12-14 17:00:35,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:00:35" (3/3) ... [2021-12-14 17:00:35,581 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-12-14 17:00:35,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:00:35,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:00:35,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:00:35,644 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 [2021-12-14 17:00:35,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:00:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-14 17:00:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 17:00:35,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:00:35,669 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-14 17:00:35,670 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:00:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:00:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2021-12-14 17:00:35,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:00:35,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232908316] [2021-12-14 17:00:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:35,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:00:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:00:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:00:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 17:00:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:00:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:00:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 17:00:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:00:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:00:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 17:00:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 17:00:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 17:00:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-14 17:00:36,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:00:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232908316] [2021-12-14 17:00:36,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232908316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:00:36,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:00:36,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:00:36,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876640822] [2021-12-14 17:00:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:00:36,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:00:36,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:00:36,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:00:36,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:00:36,253 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:00:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:00:36,711 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2021-12-14 17:00:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:00:36,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2021-12-14 17:00:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:00:36,720 INFO L225 Difference]: With dead ends: 380 [2021-12-14 17:00:36,720 INFO L226 Difference]: Without dead ends: 202 [2021-12-14 17:00:36,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:00:36,726 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 50 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:00:36,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 326 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 17:00:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-12-14 17:00:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2021-12-14 17:00:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-14 17:00:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2021-12-14 17:00:36,767 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2021-12-14 17:00:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:00:36,768 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2021-12-14 17:00:36,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:00:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2021-12-14 17:00:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 17:00:36,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:00:36,771 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-14 17:00:36,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:00:36,771 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:00:36,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:00:36,772 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2021-12-14 17:00:36,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:00:36,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68793603] [2021-12-14 17:00:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:36,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:00:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:00:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:00:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 17:00:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:00:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:00:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 17:00:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:00:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:00:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 17:00:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 17:00:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 17:00:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-14 17:00:36,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:00:36,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68793603] [2021-12-14 17:00:36,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68793603] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:00:36,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083723952] [2021-12-14 17:00:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:36,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:00:36,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:00:36,999 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) [2021-12-14 17:00:37,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:00:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:37,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 17:00:37,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:00:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-14 17:00:37,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:00:37,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083723952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:00:37,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:00:37,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-14 17:00:37,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823954791] [2021-12-14 17:00:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:00:37,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:00:37,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:00:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:00:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:00:37,478 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 17:00:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:00:37,705 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2021-12-14 17:00:37,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 17:00:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2021-12-14 17:00:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:00:37,707 INFO L225 Difference]: With dead ends: 315 [2021-12-14 17:00:37,707 INFO L226 Difference]: Without dead ends: 177 [2021-12-14 17:00:37,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:00:37,709 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:00:37,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 661 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 17:00:37,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-12-14 17:00:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-12-14 17:00:37,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2021-12-14 17:00:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2021-12-14 17:00:37,722 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2021-12-14 17:00:37,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:00:37,723 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-12-14 17:00:37,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 17:00:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2021-12-14 17:00:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-14 17:00:37,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:00:37,725 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2021-12-14 17:00:37,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 17:00:37,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:00:37,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:00:37,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:00:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2021-12-14 17:00:37,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:00:37,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206562771] [2021-12-14 17:00:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:37,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:00:37,990 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 17:00:37,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400482512] [2021-12-14 17:00:37,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:37,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:00:37,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:00:37,992 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) [2021-12-14 17:00:38,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 17:00:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:38,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 17:00:38,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:00:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 17:00:38,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:00:38,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:00:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206562771] [2021-12-14 17:00:38,456 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 17:00:38,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400482512] [2021-12-14 17:00:38,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400482512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:00:38,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:00:38,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:00:38,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949286549] [2021-12-14 17:00:38,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:00:38,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:00:38,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:00:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:00:38,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:00:38,458 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 17:00:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:00:38,793 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2021-12-14 17:00:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 17:00:38,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2021-12-14 17:00:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:00:38,795 INFO L225 Difference]: With dead ends: 326 [2021-12-14 17:00:38,795 INFO L226 Difference]: Without dead ends: 189 [2021-12-14 17:00:38,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-14 17:00:38,799 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 250 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:00:38,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 998 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 17:00:38,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-12-14 17:00:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-12-14 17:00:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-14 17:00:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2021-12-14 17:00:38,825 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2021-12-14 17:00:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:00:38,825 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-12-14 17:00:38,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 17:00:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2021-12-14 17:00:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-14 17:00:38,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:00:38,827 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2021-12-14 17:00:38,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 17:00:39,028 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,SelfDestructingSolverStorable2 [2021-12-14 17:00:39,028 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:00:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:00:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2021-12-14 17:00:39,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:00:39,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994773743] [2021-12-14 17:00:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:39,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:00:39,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 17:00:39,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970121155] [2021-12-14 17:00:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:00:39,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:00:39,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:00:39,066 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) [2021-12-14 17:00:39,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 17:00:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:00:39,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 243 conjunts are in the unsatisfiable core [2021-12-14 17:00:39,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:00:39,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-14 17:00:39,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-14 17:00:45,297 INFO L354 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2021-12-14 17:00:45,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2021-12-14 17:00:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 17:00:45,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-12-14 17:00:47,699 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.offset| 0) (= (mod (select (select |c_#memory_int| |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.base|) (+ |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.offset| 8)) 18446744073709551616) 0) (= (select |c_#valid| |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.base|) 1) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_7| Int)) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.base|))) (let ((.cse0 (select .cse2 (+ |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.offset| 24))) (.cse1 (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_7|) 0))) (and (not (= |v_aws_array_list_is_valid_~#required_size~0.base_7| |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.base|)) (or (and (not (= (mod .cse0 18446744073709551616) 0)) (<= (mod .cse1 18446744073709551616) (mod (select .cse2 (+ |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.offset| 8)) 18446744073709551616)) (= |c_ULTIMATE.start_aws_array_list_swap_harness_#t~ret794#1| 1)) (= 0 |c_ULTIMATE.start_aws_array_list_swap_harness_#t~ret794#1|)) (= (* (select .cse2 (+ |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0#1.offset| 16)) .cse0) .cse1)))))) is different from false [2021-12-14 17:00:51,935 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_200 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_200)))) is different from true [2021-12-14 17:00:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 17:00:53,062 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 17:00:53,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 74 [2021-12-14 17:00:53,096 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 17:00:53,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 17:01:02,892 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (let ((.cse0 (select .cse5 24)) (.cse6 (mod (select .cse5 8) 18446744073709551616))) (and (not (= (mod .cse0 18446744073709551616) 0)) (exists ((v_aws_array_list_length_~list.base_BEFORE_CALL_5 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_8| Int)) (let ((.cse4 (select |c_#memory_int| v_aws_array_list_length_~list.base_BEFORE_CALL_5))) (let ((.cse2 (select .cse4 24))) (let ((.cse1 (* (select .cse4 16) .cse2)) (.cse3 (mod (select .cse4 8) 18446744073709551616))) (and (or (= .cse1 0) (= .cse1 (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_8|) 0))) (not (= |v_aws_array_list_is_valid_~#required_size~0.base_8| v_aws_array_list_length_~list.base_BEFORE_CALL_5)) (not (= (mod .cse2 18446744073709551616) 0)) (<= (mod .cse1 18446744073709551616) .cse3) (= .cse3 0)))))) (= c_aws_array_list_length_~list.offset 0) (<= (mod (* (select .cse5 16) .cse0) 18446744073709551616) .cse6) (= .cse6 0) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_8| Int)) (and (not (= |v_aws_array_list_is_valid_~#required_size~0.base_8| c_aws_array_list_length_~list.base)) (let ((.cse7 (let ((.cse8 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (* (select .cse8 16) (select .cse8 24))))) (or (= .cse7 (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_8|) 0)) (= .cse7 0)))))))) is different from true [2021-12-14 17:01:11,319 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 17:01:11,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 8 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 226 treesize of output 158 [2021-12-14 17:01:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 59 refuted. 0 times theorem prover too weak. 6 trivial. 6 not checked. [2021-12-14 17:01:18,668 INFO L328 TraceCheckSpWp]: Computing backward predicates...