./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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_priority_queue_init_dynamic_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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:30:38,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:30:38,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:30:38,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:30:38,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:30:38,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:30:38,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:30:38,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:30:38,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:30:38,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:30:38,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:30:38,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:30:38,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:30:38,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:30:38,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:30:38,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:30:38,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:30:38,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:30:38,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:30:38,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:30:38,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:30:38,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:30:38,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:30:38,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:30:38,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:30:38,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:30:38,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:30:38,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:30:38,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:30:38,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:30:38,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:30:38,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:30:38,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:30:38,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:30:38,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:30:38,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:30:38,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:30:38,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:30:38,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:30:38,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:30:38,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:30:38,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 20:30:38,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:30:38,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:30:38,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:30:38,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:30:38,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:30:38,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:30:38,761 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:30:38,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:30:38,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 20:30:38,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:30:38,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:30:38,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:30:38,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:30:38,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:30:38,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:30:38,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:30:38,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:30:38,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:30:38,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:30:38,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:30:38,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:30:38,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:30:38,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:30:38,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:30:38,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-22 20:30:38,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:30:38,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:30:38,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:30:38,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:30:38,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:30:38,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-22 20:30:39,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6cb4662/07c823fd33ac447f8e9622c4933f1ff5/FLAGe4707eb13 [2021-11-22 20:30:39,605 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:30:39,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-22 20:30:39,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6cb4662/07c823fd33ac447f8e9622c4933f1ff5/FLAGe4707eb13 [2021-11-22 20:30:39,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6cb4662/07c823fd33ac447f8e9622c4933f1ff5 [2021-11-22 20:30:39,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:30:39,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:30:39,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:30:39,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:30:39,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:30:39,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:30:39" (1/1) ... [2021-11-22 20:30:39,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cdf186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:39, skipping insertion in model container [2021-11-22 20:30:39,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:30:39" (1/1) ... [2021-11-22 20:30:39,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:30:39,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:30:40,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-22 20:30:40,073 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_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-22 20:30:40,492 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:30:40,538 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,539 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,539 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,540 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,540 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,548 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,549 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,550 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,551 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,735 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:30:40,736 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:30:40,737 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:30:40,737 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:30:40,738 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:30:40,738 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:30:40,739 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:30:40,739 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:30:40,740 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:30:40,740 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:30:40,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:30:40,903 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:30:40,912 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_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-22 20:30:40,912 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_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-22 20:30:40,947 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:30:40,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,975 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,976 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,984 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:40,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:41,018 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:30:41,019 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:30:41,019 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:30:41,021 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:30:41,022 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:30:41,023 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:30:41,023 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:30:41,023 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:30:41,024 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:30:41,024 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:30:41,057 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:41,057 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:30:41,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:30:41,181 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:30:41,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41 WrapperNode [2021-11-22 20:30:41,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:30:41,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:30:41,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:30:41,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:30:41,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,322 INFO L137 Inliner]: procedures = 689, calls = 1514, calls flagged for inlining = 570, calls inlined = 98, statements flattened = 1621 [2021-11-22 20:30:41,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:30:41,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:30:41,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:30:41,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:30:41,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:30:41,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:30:41,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:30:41,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:30:41,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (1/1) ... [2021-11-22 20:30:41,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:30:41,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:41,449 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) [2021-11-22 20:30:41,467 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 [2021-11-22 20:30:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 20:30:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 20:30:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:30:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:30:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:30:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:30:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:30:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 20:30:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 20:30:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:30:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 20:30:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 20:30:41,745 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:30:41,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:30:42,557 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:30:42,562 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:30:42,563 INFO L301 CfgBuilder]: Removed 13 assume(true) statements. [2021-11-22 20:30:42,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:30:42 BoogieIcfgContainer [2021-11-22 20:30:42,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:30:42,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:30:42,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:30:42,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:30:42,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:30:39" (1/3) ... [2021-11-22 20:30:42,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5eadfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:30:42, skipping insertion in model container [2021-11-22 20:30:42,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:30:41" (2/3) ... [2021-11-22 20:30:42,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5eadfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:30:42, skipping insertion in model container [2021-11-22 20:30:42,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:30:42" (3/3) ... [2021-11-22 20:30:42,570 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-22 20:30:42,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:30:42,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-22 20:30:42,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:30:42,608 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 [2021-11-22 20:30:42,608 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-22 20:30:42,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 20:30:42,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:42,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:42,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:42,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -837304048, now seen corresponding path program 1 times [2021-11-22 20:30:42,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:42,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794127408] [2021-11-22 20:30:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:42,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:30:42,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:42,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794127408] [2021-11-22 20:30:42,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794127408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:30:42,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:30:42,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 20:30:42,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664889425] [2021-11-22 20:30:42,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:30:42,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 20:30:42,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:42,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 20:30:42,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:30:42,929 INFO L87 Difference]: Start difference. First operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:42,975 INFO L93 Difference]: Finished difference Result 564 states and 783 transitions. [2021-11-22 20:30:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 20:30:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-22 20:30:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:42,984 INFO L225 Difference]: With dead ends: 564 [2021-11-22 20:30:42,984 INFO L226 Difference]: Without dead ends: 277 [2021-11-22 20:30:42,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:30:42,989 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:42,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:30:43,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-22 20:30:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-22 20:30:43,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.3068181818181819) internal successors, (345), 276 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-22 20:30:43,022 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 43 [2021-11-22 20:30:43,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:43,022 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-22 20:30:43,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-22 20:30:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 20:30:43,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:43,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:43,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 20:30:43,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash -582734139, now seen corresponding path program 1 times [2021-11-22 20:30:43,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:43,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777477014] [2021-11-22 20:30:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:43,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:43,075 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:43,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123909854] [2021-11-22 20:30:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:43,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:43,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:43,092 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) [2021-11-22 20:30:43,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 20:30:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:43,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2181 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 20:30:43,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:30:43,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:30:43,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:43,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777477014] [2021-11-22 20:30:43,590 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:43,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123909854] [2021-11-22 20:30:43,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123909854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:30:43,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:30:43,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:30:43,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889038566] [2021-11-22 20:30:43,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:30:43,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:30:43,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:30:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:30:43,594 INFO L87 Difference]: Start difference. First operand 277 states and 345 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:43,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:43,689 INFO L93 Difference]: Finished difference Result 692 states and 872 transitions. [2021-11-22 20:30:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:30:43,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-22 20:30:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:43,692 INFO L225 Difference]: With dead ends: 692 [2021-11-22 20:30:43,692 INFO L226 Difference]: Without dead ends: 519 [2021-11-22 20:30:43,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:30:43,694 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 583 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:43,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 1619 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:30:43,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-11-22 20:30:43,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 280. [2021-11-22 20:30:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 267 states have (on average 1.303370786516854) internal successors, (348), 279 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 348 transitions. [2021-11-22 20:30:43,705 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 348 transitions. Word has length 57 [2021-11-22 20:30:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:43,706 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 348 transitions. [2021-11-22 20:30:43,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 348 transitions. [2021-11-22 20:30:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 20:30:43,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:43,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:43,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 20:30:43,922 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 [2021-11-22 20:30:43,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:43,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:43,923 INFO L85 PathProgramCache]: Analyzing trace with hash -941858683, now seen corresponding path program 1 times [2021-11-22 20:30:43,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:43,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895967373] [2021-11-22 20:30:43,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:43,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:43,979 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:43,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638296516] [2021-11-22 20:30:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:43,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:43,982 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) [2021-11-22 20:30:43,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 20:30:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:44,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2196 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-22 20:30:44,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:44,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:30:44,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:30:44,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:44,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895967373] [2021-11-22 20:30:44,459 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:44,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638296516] [2021-11-22 20:30:44,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638296516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:30:44,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:30:44,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 20:30:44,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695019927] [2021-11-22 20:30:44,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:30:44,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:30:44,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:44,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:30:44,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:30:44,461 INFO L87 Difference]: Start difference. First operand 280 states and 348 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:44,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:44,689 INFO L93 Difference]: Finished difference Result 551 states and 689 transitions. [2021-11-22 20:30:44,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 20:30:44,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-22 20:30:44,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:44,691 INFO L225 Difference]: With dead ends: 551 [2021-11-22 20:30:44,691 INFO L226 Difference]: Without dead ends: 549 [2021-11-22 20:30:44,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-22 20:30:44,692 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 656 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:44,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 2491 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 20:30:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-11-22 20:30:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 282. [2021-11-22 20:30:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 269 states have (on average 1.3011152416356877) internal successors, (350), 281 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 350 transitions. [2021-11-22 20:30:44,707 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 350 transitions. Word has length 57 [2021-11-22 20:30:44,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:44,708 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 350 transitions. [2021-11-22 20:30:44,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 350 transitions. [2021-11-22 20:30:44,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 20:30:44,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:44,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:44,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 20:30:44,915 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 [2021-11-22 20:30:44,916 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:44,916 INFO L85 PathProgramCache]: Analyzing trace with hash -941799101, now seen corresponding path program 1 times [2021-11-22 20:30:44,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:44,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932775188] [2021-11-22 20:30:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:44,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:44,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:44,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766941084] [2021-11-22 20:30:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:44,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:44,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:44,970 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) [2021-11-22 20:30:44,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 20:30:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:45,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2201 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 20:30:45,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:30:45,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:30:45,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:45,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932775188] [2021-11-22 20:30:45,390 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:45,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766941084] [2021-11-22 20:30:45,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766941084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:30:45,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:30:45,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 20:30:45,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044060279] [2021-11-22 20:30:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:30:45,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:30:45,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:30:45,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:30:45,392 INFO L87 Difference]: Start difference. First operand 282 states and 350 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:45,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:45,407 INFO L93 Difference]: Finished difference Result 534 states and 667 transitions. [2021-11-22 20:30:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:30:45,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-22 20:30:45,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:45,409 INFO L225 Difference]: With dead ends: 534 [2021-11-22 20:30:45,409 INFO L226 Difference]: Without dead ends: 282 [2021-11-22 20:30:45,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:30:45,413 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 314 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:45,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 362 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:30:45,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-22 20:30:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-22 20:30:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 269 states have (on average 1.2936802973977695) internal successors, (348), 281 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2021-11-22 20:30:45,421 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 57 [2021-11-22 20:30:45,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:45,422 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2021-11-22 20:30:45,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2021-11-22 20:30:45,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 20:30:45,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:45,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:45,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 20:30:45,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:45,645 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:45,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 895580644, now seen corresponding path program 1 times [2021-11-22 20:30:45,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649453367] [2021-11-22 20:30:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:45,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:45,704 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:45,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534399791] [2021-11-22 20:30:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:45,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:45,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:30:45,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 20:30:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:46,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 20:30:46,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:46,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:30:46,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:30:46,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:46,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649453367] [2021-11-22 20:30:46,178 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:46,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534399791] [2021-11-22 20:30:46,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534399791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:30:46,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:30:46,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:30:46,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126079951] [2021-11-22 20:30:46,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:30:46,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:30:46,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:30:46,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:30:46,184 INFO L87 Difference]: Start difference. First operand 282 states and 348 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:46,208 INFO L93 Difference]: Finished difference Result 538 states and 670 transitions. [2021-11-22 20:30:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:30:46,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 20:30:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:46,209 INFO L225 Difference]: With dead ends: 538 [2021-11-22 20:30:46,209 INFO L226 Difference]: Without dead ends: 286 [2021-11-22 20:30:46,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:30:46,210 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 313 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:46,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 693 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:30:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-22 20:30:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2021-11-22 20:30:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 271 states have (on average 1.2915129151291513) internal successors, (350), 283 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:46,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 350 transitions. [2021-11-22 20:30:46,215 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 350 transitions. Word has length 59 [2021-11-22 20:30:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:46,215 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 350 transitions. [2021-11-22 20:30:46,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 350 transitions. [2021-11-22 20:30:46,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 20:30:46,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:46,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:46,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 20:30:46,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:46,440 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1520250560, now seen corresponding path program 1 times [2021-11-22 20:30:46,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:46,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70819846] [2021-11-22 20:30:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:46,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:46,510 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398034940] [2021-11-22 20:30:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:46,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:46,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:46,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:30:46,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 20:30:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:30:46,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2253 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 20:30:46,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:47,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 20:30:47,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:30:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 20:30:47,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:47,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70819846] [2021-11-22 20:30:47,135 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:47,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398034940] [2021-11-22 20:30:47,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398034940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 20:30:47,135 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 20:30:47,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-22 20:30:47,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95480245] [2021-11-22 20:30:47,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 20:30:47,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 20:30:47,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 20:30:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 20:30:47,137 INFO L87 Difference]: Start difference. First operand 284 states and 350 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:47,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:47,208 INFO L93 Difference]: Finished difference Result 549 states and 685 transitions. [2021-11-22 20:30:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 20:30:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-22 20:30:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:47,214 INFO L225 Difference]: With dead ends: 549 [2021-11-22 20:30:47,214 INFO L226 Difference]: Without dead ends: 296 [2021-11-22 20:30:47,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:30:47,215 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 648 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:47,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 1026 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:30:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-22 20:30:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2021-11-22 20:30:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 283 states have (on average 1.2791519434628975) internal successors, (362), 295 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 362 transitions. [2021-11-22 20:30:47,220 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 362 transitions. Word has length 63 [2021-11-22 20:30:47,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:47,221 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 362 transitions. [2021-11-22 20:30:47,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 362 transitions. [2021-11-22 20:30:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-22 20:30:47,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:47,222 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:47,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 20:30:47,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:47,427 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:47,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1872450388, now seen corresponding path program 2 times [2021-11-22 20:30:47,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:47,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611073039] [2021-11-22 20:30:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:47,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:47,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:47,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472779206] [2021-11-22 20:30:47,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 20:30:47,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:47,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:47,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:30:47,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 20:30:49,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 20:30:49,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 20:30:49,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2367 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 20:30:49,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:30:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 20:30:49,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:30:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 20:30:49,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:30:49,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611073039] [2021-11-22 20:30:49,745 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:30:49,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472779206] [2021-11-22 20:30:49,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472779206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 20:30:49,745 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 20:30:49,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-11-22 20:30:49,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090091229] [2021-11-22 20:30:49,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 20:30:49,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 20:30:49,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:30:49,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 20:30:49,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-22 20:30:49,747 INFO L87 Difference]: Start difference. First operand 296 states and 362 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:30:50,172 INFO L93 Difference]: Finished difference Result 579 states and 721 transitions. [2021-11-22 20:30:50,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 20:30:50,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-22 20:30:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:30:50,174 INFO L225 Difference]: With dead ends: 579 [2021-11-22 20:30:50,174 INFO L226 Difference]: Without dead ends: 320 [2021-11-22 20:30:50,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2021-11-22 20:30:50,175 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 374 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 20:30:50,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2716 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 20:30:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-22 20:30:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2021-11-22 20:30:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 307 states have (on average 1.257328990228013) internal successors, (386), 319 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 386 transitions. [2021-11-22 20:30:50,193 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 386 transitions. Word has length 75 [2021-11-22 20:30:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:30:50,194 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 386 transitions. [2021-11-22 20:30:50,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:30:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 386 transitions. [2021-11-22 20:30:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-22 20:30:50,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:30:50,196 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:30:50,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 20:30:50,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:50,408 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 20:30:50,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:30:50,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1500153212, now seen corresponding path program 3 times [2021-11-22 20:30:50,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:30:50,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482575667] [2021-11-22 20:30:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:30:50,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:30:50,473 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:30:50,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369315569] [2021-11-22 20:30:50,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 20:30:50,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:30:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:30:50,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:30:50,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Killed by 15