./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_static_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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:32:58,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:32:58,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:32:58,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:32:58,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:32:58,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:32:58,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:32:58,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:32:58,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:32:58,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:32:58,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:32:58,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:32:58,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:32:58,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:32:58,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:32:58,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:32:58,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:32:58,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:32:58,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:32:58,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:32:58,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:32:58,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:32:58,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:32:58,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:32:58,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:32:58,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:32:58,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:32:58,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:32:58,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:32:58,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:32:58,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:32:58,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:32:58,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:32:58,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:32:58,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:32:58,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:32:58,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:32:58,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:32:58,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:32:58,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:32:58,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:32:58,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:32:58,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:32:58,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:32:58,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:32:58,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:32:58,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:32:58,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:32:58,623 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:32:58,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:32:58,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:32:58,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:32:58,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:32:58,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:32:58,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:32:58,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:32:58,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:32:58,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:32:58,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:32:58,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:32:58,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:32:58,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-05 13:32:58,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:32:58,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:32:58,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:32:58,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:32:58,898 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:32:58,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-05 13:32:58,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff45e463/9885196dd03747e9bedf83683e19311d/FLAG1101bcd0e [2021-11-05 13:32:59,488 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:32:59,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-05 13:32:59,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff45e463/9885196dd03747e9bedf83683e19311d/FLAG1101bcd0e [2021-11-05 13:32:59,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff45e463/9885196dd03747e9bedf83683e19311d [2021-11-05 13:32:59,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:32:59,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:32:59,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:32:59,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:32:59,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:32:59,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:32:59" (1/1) ... [2021-11-05 13:32:59,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91b14b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:32:59, skipping insertion in model container [2021-11-05 13:32:59,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:32:59" (1/1) ... [2021-11-05 13:32:59,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:32:59,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:32:59,966 WARN L228 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_static_harness.i[4504,4517] [2021-11-05 13:32:59,972 WARN L228 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_static_harness.i[4564,4577] [2021-11-05 13:32:59,986 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:32:59,991 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:33:00,397 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:33:00,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:33:00,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:33:00,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:33:00,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:33:00,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:33:00,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:33:00,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:33:00,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:33:00,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:33:00,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:33:00,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:33:00,826 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:33:00,840 WARN L228 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_static_harness.i[4504,4517] [2021-11-05 13:33:00,845 WARN L228 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_static_harness.i[4564,4577] [2021-11-05 13:33:00,846 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:33:00,847 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:33:00,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:33:00,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:33:00,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:33:00,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:33:00,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:33:00,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:33:00,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:33:00,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:33:00,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:33:00,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:33:00,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:33:00,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:33:00,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:33:01,116 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:33:01,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01 WrapperNode [2021-11-05 13:33:01,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:33:01,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:33:01,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:33:01,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:33:01,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:33:01,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:33:01,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:33:01,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:33:01,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:33:01,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:33:01,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:33:01,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:33:01,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (1/1) ... [2021-11-05 13:33:01,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:33:01,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:01,399 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) [2021-11-05 13:33:01,407 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 [2021-11-05 13:33:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:33:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:33:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:33:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:33:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:33:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:33:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:33:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 13:33:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:33:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:33:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:33:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:33:08,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:33:08,750 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2021-11-05 13:33:08,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:33:08 BoogieIcfgContainer [2021-11-05 13:33:08,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:33:08,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:33:08,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:33:08,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:33:08,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:32:59" (1/3) ... [2021-11-05 13:33:08,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630520cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:33:08, skipping insertion in model container [2021-11-05 13:33:08,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:33:01" (2/3) ... [2021-11-05 13:33:08,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630520cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:33:08, skipping insertion in model container [2021-11-05 13:33:08,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:33:08" (3/3) ... [2021-11-05 13:33:08,756 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-05 13:33:08,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:33:08,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-05 13:33:08,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:33:08,823 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 [2021-11-05 13:33:08,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-05 13:33:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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) [2021-11-05 13:33:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 13:33:08,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:08,850 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] [2021-11-05 13:33:08,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2021-11-05 13:33:08,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:08,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591616605] [2021-11-05 13:33:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:08,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:33:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:33:09,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:33:09,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591616605] [2021-11-05 13:33:09,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591616605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:33:09,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:33:09,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:33:09,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599681165] [2021-11-05 13:33:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:33:09,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:33:09,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:33:09,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:33:09,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:33:09,399 INFO L87 Difference]: Start difference. First operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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) [2021-11-05 13:33:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:33:09,439 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2021-11-05 13:33:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:33:09,442 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 [2021-11-05 13:33:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:33:09,450 INFO L225 Difference]: With dead ends: 407 [2021-11-05 13:33:09,451 INFO L226 Difference]: Without dead ends: 199 [2021-11-05 13:33:09,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:33:09,458 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:33:09,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 3.48ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:33:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-05 13:33:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-05 13:33:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 198 states have internal predecessors, (245), 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) [2021-11-05 13:33:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2021-11-05 13:33:09,502 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2021-11-05 13:33:09,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:33:09,503 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2021-11-05 13:33:09,507 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) [2021-11-05 13:33:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2021-11-05 13:33:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 13:33:09,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:09,509 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] [2021-11-05 13:33:09,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:33:09,510 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2021-11-05 13:33:09,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:09,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228545609] [2021-11-05 13:33:09,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:09,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:09,594 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:33:09,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581339126] [2021-11-05 13:33:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:09,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:33:09,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:09,596 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) [2021-11-05 13:33:09,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:33:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:33:10,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:33:10,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:33:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:33:10,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:33:10,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:33:10,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228545609] [2021-11-05 13:33:10,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:33:10,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581339126] [2021-11-05 13:33:10,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581339126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:33:10,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:33:10,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:33:10,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662365246] [2021-11-05 13:33:10,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:33:10,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:33:10,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:33:10,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:33:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:33:10,810 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-11-05 13:33:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:33:11,305 INFO L93 Difference]: Finished difference Result 372 states and 455 transitions. [2021-11-05 13:33:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:33:11,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-11-05 13:33:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:33:11,307 INFO L225 Difference]: With dead ends: 372 [2021-11-05 13:33:11,307 INFO L226 Difference]: Without dead ends: 237 [2021-11-05 13:33:11,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 266.21ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:33:11,309 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1090 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 283.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 321.28ms IncrementalHoareTripleChecker+Time [2021-11-05 13:33:11,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 437 Invalid, 81 Unknown, 0 Unchecked, 6.59ms Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 321.28ms Time] [2021-11-05 13:33:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-05 13:33:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2021-11-05 13:33:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 198 states have internal predecessors, (244), 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) [2021-11-05 13:33:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2021-11-05 13:33:11,324 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2021-11-05 13:33:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:33:11,326 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2021-11-05 13:33:11,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-11-05 13:33:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2021-11-05 13:33:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 13:33:11,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:11,328 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] [2021-11-05 13:33:11,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 13:33:11,543 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 [2021-11-05 13:33:11,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:11,544 INFO L85 PathProgramCache]: Analyzing trace with hash 802072627, now seen corresponding path program 1 times [2021-11-05 13:33:11,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:11,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505587085] [2021-11-05 13:33:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:11,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:11,618 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:33:11,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390770123] [2021-11-05 13:33:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:11,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:33:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:11,621 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) [2021-11-05 13:33:11,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:33:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:33:12,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:33:12,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:33:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:33:12,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:33:12,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:33:12,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505587085] [2021-11-05 13:33:12,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:33:12,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390770123] [2021-11-05 13:33:12,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390770123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:33:12,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:33:12,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:33:12,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266733649] [2021-11-05 13:33:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:33:12,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:33:12,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:33:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:33:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:33:12,436 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2021-11-05 13:33:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:33:12,774 INFO L93 Difference]: Finished difference Result 360 states and 452 transitions. [2021-11-05 13:33:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:33:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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 [2021-11-05 13:33:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:33:12,777 INFO L225 Difference]: With dead ends: 360 [2021-11-05 13:33:12,777 INFO L226 Difference]: Without dead ends: 224 [2021-11-05 13:33:12,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:33:12,778 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 38 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 259.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.03ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.74ms IncrementalHoareTripleChecker+Time [2021-11-05 13:33:12,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 677 Invalid, 91 Unknown, 0 Unchecked, 3.03ms Time], IncrementalHoareTripleChecker [17 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 299.74ms Time] [2021-11-05 13:33:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-05 13:33:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2021-11-05 13:33:12,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 200 states have (on average 1.27) internal successors, (254), 208 states have internal predecessors, (254), 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) [2021-11-05 13:33:12,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2021-11-05 13:33:12,786 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 57 [2021-11-05 13:33:12,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:33:12,787 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2021-11-05 13:33:12,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2021-11-05 13:33:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2021-11-05 13:33:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 13:33:12,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:12,796 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] [2021-11-05 13:33:12,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 13:33:13,011 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 [2021-11-05 13:33:13,012 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:13,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:13,015 INFO L85 PathProgramCache]: Analyzing trace with hash -972934735, now seen corresponding path program 1 times [2021-11-05 13:33:13,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:13,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663669207] [2021-11-05 13:33:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:13,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:13,069 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:33:13,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744691754] [2021-11-05 13:33:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:13,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:33:13,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:13,071 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) [2021-11-05 13:33:13,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 13:33:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:33:13,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-05 13:33:13,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:33:14,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-05 13:33:14,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-05 13:33:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:33:14,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:33:14,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:33:14,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663669207] [2021-11-05 13:33:14,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:33:14,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744691754] [2021-11-05 13:33:14,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744691754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:33:14,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:33:14,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 13:33:14,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65260974] [2021-11-05 13:33:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:33:14,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 13:33:14,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:33:14,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 13:33:14,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:33:14,703 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 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) [2021-11-05 13:33:16,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:33:18,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:33:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:33:20,420 INFO L93 Difference]: Finished difference Result 403 states and 489 transitions. [2021-11-05 13:33:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 13:33:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 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 [2021-11-05 13:33:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:33:20,421 INFO L225 Difference]: With dead ends: 403 [2021-11-05 13:33:20,421 INFO L226 Difference]: Without dead ends: 259 [2021-11-05 13:33:20,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 744.13ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-05 13:33:20,423 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 828 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4866.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.01ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5172.56ms IncrementalHoareTripleChecker+Time [2021-11-05 13:33:20,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1017 Invalid, 306 Unknown, 0 Unchecked, 9.01ms Time], IncrementalHoareTripleChecker [27 Valid, 277 Invalid, 2 Unknown, 0 Unchecked, 5172.56ms Time] [2021-11-05 13:33:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-05 13:33:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 207. [2021-11-05 13:33:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 206 states have internal predecessors, (251), 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) [2021-11-05 13:33:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2021-11-05 13:33:20,435 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 57 [2021-11-05 13:33:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:33:20,435 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2021-11-05 13:33:20,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 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) [2021-11-05 13:33:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2021-11-05 13:33:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-05 13:33:20,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:20,437 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] [2021-11-05 13:33:20,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-05 13:33:20,647 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 [2021-11-05 13:33:20,648 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash -702926311, now seen corresponding path program 1 times [2021-11-05 13:33:20,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:20,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510966504] [2021-11-05 13:33:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:20,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:20,720 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:33:20,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034094402] [2021-11-05 13:33:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:20,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:33:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:20,722 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) [2021-11-05 13:33:20,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 13:33:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:33:21,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-05 13:33:21,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:33:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:33:21,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:33:21,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:33:21,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510966504] [2021-11-05 13:33:21,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:33:21,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034094402] [2021-11-05 13:33:21,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034094402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:33:21,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:33:21,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:33:21,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705616876] [2021-11-05 13:33:21,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:33:21,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:33:21,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:33:21,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:33:21,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:33:21,608 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2021-11-05 13:33:23,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:33:25,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:33:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:33:27,002 INFO L93 Difference]: Finished difference Result 452 states and 555 transitions. [2021-11-05 13:33:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:33:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 [2021-11-05 13:33:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:33:27,004 INFO L225 Difference]: With dead ends: 452 [2021-11-05 13:33:27,004 INFO L226 Difference]: Without dead ends: 307 [2021-11-05 13:33:27,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 248.99ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:33:27,005 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 130 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4828.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.93ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5195.22ms IncrementalHoareTripleChecker+Time [2021-11-05 13:33:27,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 902 Invalid, 290 Unknown, 0 Unchecked, 5.93ms Time], IncrementalHoareTripleChecker [31 Valid, 257 Invalid, 2 Unknown, 0 Unchecked, 5195.22ms Time] [2021-11-05 13:33:27,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-05 13:33:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 214. [2021-11-05 13:33:27,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 213 states have internal predecessors, (258), 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) [2021-11-05 13:33:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-11-05 13:33:27,017 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 59 [2021-11-05 13:33:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:33:27,018 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-11-05 13:33:27,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2021-11-05 13:33:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2021-11-05 13:33:27,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-05 13:33:27,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:33:27,020 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] [2021-11-05 13:33:27,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-05 13:33:27,239 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 [2021-11-05 13:33:27,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:33:27,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:33:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash -645668009, now seen corresponding path program 1 times [2021-11-05 13:33:27,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:33:27,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760966980] [2021-11-05 13:33:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:27,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:33:27,290 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:33:27,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145105965] [2021-11-05 13:33:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:33:27,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:33:27,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:33:27,292 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) [2021-11-05 13:33:27,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 13:39:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:39:15,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:39:15,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:39:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:39:15,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:39:15,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:39:15,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760966980] [2021-11-05 13:39:15,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:39:15,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145105965] [2021-11-05 13:39:15,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145105965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:39:15,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:39:15,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:39:15,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657573894] [2021-11-05 13:39:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:39:15,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:39:15,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:39:15,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:39:15,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:39:15,433 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2021-11-05 13:39:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:39:15,471 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions. [2021-11-05 13:39:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:39:15,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 [2021-11-05 13:39:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:39:15,473 INFO L225 Difference]: With dead ends: 398 [2021-11-05 13:39:15,473 INFO L226 Difference]: Without dead ends: 214 [2021-11-05 13:39:15,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:39:15,478 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 214 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.40ms IncrementalHoareTripleChecker+Time [2021-11-05 13:39:15,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 265 Invalid, 3 Unknown, 0 Unchecked, 1.14ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 28.40ms Time] [2021-11-05 13:39:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-05 13:39:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-05 13:39:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2536585365853659) internal successors, (257), 213 states have internal predecessors, (257), 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) [2021-11-05 13:39:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-05 13:39:15,486 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 59 [2021-11-05 13:39:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:39:15,487 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-05 13:39:15,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2021-11-05 13:39:15,487 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-05 13:39:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-05 13:39:15,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:39:15,487 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] [2021-11-05 13:39:15,695 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-05 13:39:15,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2021-11-05 13:39:15,765 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 [2021-11-05 13:39:15,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:39:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:39:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1838986612, now seen corresponding path program 1 times [2021-11-05 13:39:15,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:39:15,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088999533] [2021-11-05 13:39:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:39:15,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:39:15,821 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:39:15,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514098539] [2021-11-05 13:39:15,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:39:15,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:39:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:39:15,822 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) [2021-11-05 13:39:15,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 13:46:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:46:18,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:46:18,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:46:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:46:18,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:46:18,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:46:18,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088999533] [2021-11-05 13:46:18,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:46:18,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514098539] [2021-11-05 13:46:18,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514098539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:46:18,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:46:18,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:46:18,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040825628] [2021-11-05 13:46:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:46:18,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:46:18,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:46:18,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:46:18,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:46:18,684 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-05 13:46:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:46:18,724 INFO L93 Difference]: Finished difference Result 400 states and 485 transitions. [2021-11-05 13:46:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:46:18,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-05 13:46:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:46:18,726 INFO L225 Difference]: With dead ends: 400 [2021-11-05 13:46:18,726 INFO L226 Difference]: Without dead ends: 216 [2021-11-05 13:46:18,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.34ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:46:18,727 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 215 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.91ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.89ms IncrementalHoareTripleChecker+Time [2021-11-05 13:46:18,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 501 Invalid, 9 Unknown, 0 Unchecked, 0.91ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 31.89ms Time] [2021-11-05 13:46:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-05 13:46:18,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-05 13:46:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.2524271844660195) internal successors, (258), 214 states have internal predecessors, (258), 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) [2021-11-05 13:46:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 258 transitions. [2021-11-05 13:46:18,735 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 258 transitions. Word has length 60 [2021-11-05 13:46:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:46:18,736 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 258 transitions. [2021-11-05 13:46:18,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-05 13:46:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 258 transitions. [2021-11-05 13:46:18,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-05 13:46:18,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:46:18,737 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] [2021-11-05 13:46:18,951 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2021-11-05 13:46:19,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2021-11-05 13:46:19,007 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 [2021-11-05 13:46:19,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 13:46:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:46:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1314664846, now seen corresponding path program 1 times [2021-11-05 13:46:19,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:46:19,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144230224] [2021-11-05 13:46:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:46:19,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:46:19,080 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:46:19,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486654882] [2021-11-05 13:46:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:46:19,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:46:19,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:46:19,081 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) [2021-11-05 13:46:19,082 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