./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_capacity_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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 13:52:56,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 13:52:56,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 13:52:56,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 13:52:56,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 13:52:56,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 13:52:56,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 13:52:56,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 13:52:56,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 13:52:56,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 13:52:56,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 13:52:56,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 13:52:56,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 13:52:56,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 13:52:56,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 13:52:56,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 13:52:56,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 13:52:56,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 13:52:56,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 13:52:56,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 13:52:56,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 13:52:56,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 13:52:56,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 13:52:56,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 13:52:56,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 13:52:56,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 13:52:56,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 13:52:56,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 13:52:56,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 13:52:56,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 13:52:56,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 13:52:56,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 13:52:56,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 13:52:56,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 13:52:56,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 13:52:56,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 13:52:56,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 13:52:56,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 13:52:56,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 13:52:56,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 13:52:56,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 13:52:56,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 13:52:56,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 13:52:56,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 13:52:56,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 13:52:56,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 13:52:56,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 13:52:56,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 13:52:56,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 13:52:56,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 13:52:56,764 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 13:52:56,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 13:52:56,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 13:52:56,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 13:52:56,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 13:52:56,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:52:56,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 13:52:56,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 13:52:56,768 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 13:52:56,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 13:52:56,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 13:52:56,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 13:52:56,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2021-12-22 13:52:56,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 13:52:56,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 13:52:56,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 13:52:56,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 13:52:56,951 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 13:52:56,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-12-22 13:52:57,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45638586c/890b7238f2564937869ba48f5c61a5af/FLAG084065e48 [2021-12-22 13:52:57,587 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 13:52:57,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-12-22 13:52:57,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45638586c/890b7238f2564937869ba48f5c61a5af/FLAG084065e48 [2021-12-22 13:52:58,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45638586c/890b7238f2564937869ba48f5c61a5af [2021-12-22 13:52:58,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 13:52:58,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 13:52:58,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 13:52:58,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 13:52:58,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 13:52:58,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:58" (1/1) ... [2021-12-22 13:52:58,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cd51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:58, skipping insertion in model container [2021-12-22 13:52:58,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:58" (1/1) ... [2021-12-22 13:52:58,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 13:52:58,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 13:52:58,345 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_capacity_harness.i[4497,4510] [2021-12-22 13:52:58,350 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_capacity_harness.i[4557,4570] [2021-12-22 13:52:58,849 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 13:52:58,911 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,912 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,912 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,912 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,913 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,919 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,921 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,922 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,923 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,923 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,924 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,924 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:58,925 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,099 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 13:52:59,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 13:52:59,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 13:52:59,101 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 13:52:59,102 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 13:52:59,102 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 13:52:59,102 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 13:52:59,103 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 13:52:59,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 13:52:59,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 13:52:59,201 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,215 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:52:59,276 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 13:52:59,284 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_capacity_harness.i[4497,4510] [2021-12-22 13:52:59,285 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_capacity_harness.i[4557,4570] [2021-12-22 13:52:59,304 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 13:52:59,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,314 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,314 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,318 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,318 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,319 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,319 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,320 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,320 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,321 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,321 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,367 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 13:52:59,368 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 13:52:59,368 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 13:52:59,369 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 13:52:59,370 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 13:52:59,370 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 13:52:59,370 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 13:52:59,371 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 13:52:59,371 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 13:52:59,371 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 13:52:59,387 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,394 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 13:52:59,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:52:59,540 INFO L208 MainTranslator]: Completed translation [2021-12-22 13:52:59,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59 WrapperNode [2021-12-22 13:52:59,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 13:52:59,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 13:52:59,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 13:52:59,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 13:52:59,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,667 INFO L137 Inliner]: procedures = 690, calls = 1687, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 616 [2021-12-22 13:52:59,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 13:52:59,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 13:52:59,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 13:52:59,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 13:52:59,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 13:52:59,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 13:52:59,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 13:52:59,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 13:52:59,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (1/1) ... [2021-12-22 13:52:59,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:52:59,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:52:59,770 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) [2021-12-22 13:52:59,797 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 [2021-12-22 13:52:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 13:52:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-22 13:52:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-22 13:52:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-22 13:52:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-22 13:52:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-22 13:52:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-22 13:52:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 13:52:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-22 13:52:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-22 13:52:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-22 13:52:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 13:52:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-22 13:52:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-22 13:52:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-22 13:52:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-22 13:52:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 13:52:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 13:52:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-22 13:52:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-22 13:52:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-22 13:52:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-22 13:52:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 13:52:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-22 13:52:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-22 13:52:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 13:52:59,970 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 13:52:59,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 13:53:00,466 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 13:53:00,473 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 13:53:00,473 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 13:53:00,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:53:00 BoogieIcfgContainer [2021-12-22 13:53:00,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 13:53:00,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 13:53:00,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 13:53:00,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 13:53:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:52:58" (1/3) ... [2021-12-22 13:53:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f90c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:53:00, skipping insertion in model container [2021-12-22 13:53:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:59" (2/3) ... [2021-12-22 13:53:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f90c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:53:00, skipping insertion in model container [2021-12-22 13:53:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:53:00" (3/3) ... [2021-12-22 13:53:00,482 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2021-12-22 13:53:00,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 13:53:00,486 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 13:53:00,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 13:53:00,527 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 [2021-12-22 13:53:00,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 13:53:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-12-22 13:53:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-22 13:53:00,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:53:00,549 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-22 13:53:00,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:53:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:53:00,564 INFO L85 PathProgramCache]: Analyzing trace with hash -817942521, now seen corresponding path program 1 times [2021-12-22 13:53:00,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:53:00,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331529005] [2021-12-22 13:53:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:00,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:53:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:53:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:53:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:53:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 13:53:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 13:53:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 13:53:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 13:53:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 13:53:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 13:53:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 13:53:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 13:53:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 13:53:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,154 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-22 13:53:01,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:53:01,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331529005] [2021-12-22 13:53:01,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331529005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:53:01,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:53:01,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 13:53:01,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092285560] [2021-12-22 13:53:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:53:01,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 13:53:01,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:53:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 13:53:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 13:53:01,184 INFO L87 Difference]: Start difference. First operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 13:53:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:53:01,500 INFO L93 Difference]: Finished difference Result 239 states and 325 transitions. [2021-12-22 13:53:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 13:53:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2021-12-22 13:53:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:53:01,511 INFO L225 Difference]: With dead ends: 239 [2021-12-22 13:53:01,511 INFO L226 Difference]: Without dead ends: 119 [2021-12-22 13:53:01,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 13:53:01,520 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 13:53:01,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 13:53:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-22 13:53:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-12-22 13:53:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-22 13:53:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2021-12-22 13:53:01,573 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 74 [2021-12-22 13:53:01,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:53:01,574 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2021-12-22 13:53:01,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 13:53:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2021-12-22 13:53:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-22 13:53:01,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:53:01,581 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-22 13:53:01,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 13:53:01,581 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:53:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:53:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1310312895, now seen corresponding path program 1 times [2021-12-22 13:53:01,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:53:01,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699847942] [2021-12-22 13:53:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:01,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:53:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 13:53:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 13:53:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 13:53:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 13:53:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 13:53:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 13:53:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 13:53:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 13:53:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 13:53:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 13:53:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 13:53:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 13:53:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 13:53:01,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:53:01,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699847942] [2021-12-22 13:53:01,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699847942] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 13:53:01,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701319169] [2021-12-22 13:53:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:01,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:53:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:53:01,889 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) [2021-12-22 13:53:01,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 13:53:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:02,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 13:53:02,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:53:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-22 13:53:02,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 13:53:02,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701319169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:53:02,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 13:53:02,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-22 13:53:02,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168071845] [2021-12-22 13:53:02,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:53:02,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 13:53:02,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:53:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 13:53:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-22 13:53:02,365 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 13:53:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:53:02,514 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2021-12-22 13:53:02,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 13:53:02,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2021-12-22 13:53:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:53:02,515 INFO L225 Difference]: With dead ends: 199 [2021-12-22 13:53:02,516 INFO L226 Difference]: Without dead ends: 119 [2021-12-22 13:53:02,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-22 13:53:02,517 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 158 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 13:53:02,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 409 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 13:53:02,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-22 13:53:02,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-12-22 13:53:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 76 states have internal predecessors, (87), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2021-12-22 13:53:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2021-12-22 13:53:02,526 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 74 [2021-12-22 13:53:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:53:02,526 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2021-12-22 13:53:02,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 13:53:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2021-12-22 13:53:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-22 13:53:02,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:53:02,528 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1] [2021-12-22 13:53:02,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 13:53:02,747 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 [2021-12-22 13:53:02,748 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:53:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:53:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1377860737, now seen corresponding path program 1 times [2021-12-22 13:53:02,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:53:02,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177795456] [2021-12-22 13:53:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:02,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:53:02,806 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 13:53:02,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192789414] [2021-12-22 13:53:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:02,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:53:02,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:53:02,808 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) [2021-12-22 13:53:02,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 13:53:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:03,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 13:53:03,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:53:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-22 13:53:03,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 13:53:03,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:53:03,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177795456] [2021-12-22 13:53:03,234 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 13:53:03,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192789414] [2021-12-22 13:53:03,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192789414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:53:03,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:53:03,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 13:53:03,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884806303] [2021-12-22 13:53:03,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:53:03,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 13:53:03,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:53:03,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 13:53:03,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 13:53:03,236 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-22 13:53:03,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 13:53:03,379 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2021-12-22 13:53:03,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 13:53:03,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 89 [2021-12-22 13:53:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 13:53:03,381 INFO L225 Difference]: With dead ends: 189 [2021-12-22 13:53:03,381 INFO L226 Difference]: Without dead ends: 117 [2021-12-22 13:53:03,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-22 13:53:03,382 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 13:53:03,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 503 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 13:53:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-22 13:53:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-12-22 13:53:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 74 states have internal predecessors, (85), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-22 13:53:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2021-12-22 13:53:03,390 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 89 [2021-12-22 13:53:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 13:53:03,390 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2021-12-22 13:53:03,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-22 13:53:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2021-12-22 13:53:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-22 13:53:03,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 13:53:03,392 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1] [2021-12-22 13:53:03,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 13:53:03,611 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 [2021-12-22 13:53:03,611 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:53:03,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:53:03,611 INFO L85 PathProgramCache]: Analyzing trace with hash -355007149, now seen corresponding path program 1 times [2021-12-22 13:53:03,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:53:03,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354336473] [2021-12-22 13:53:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:03,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:53:03,669 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 13:53:03,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071352360] [2021-12-22 13:53:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:53:03,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 13:53:03,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:53:03,671 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) [2021-12-22 13:53:03,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 13:53:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:53:04,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 256 conjunts are in the unsatisfiable core [2021-12-22 13:53:04,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 13:53:04,165 INFO L387 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 [2021-12-22 13:53:04,539 INFO L387 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 [2021-12-22 13:53:04,544 INFO L387 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 [2021-12-22 13:53:04,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 13:53:04,964 INFO L353 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2021-12-22 13:53:04,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2021-12-22 13:54:01,584 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-22 13:54:01,585 INFO L387 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 32 treesize of output 37