./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:27:49,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:27:49,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:27:49,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:27:49,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:27:49,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:27:49,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:27:49,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:27:49,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:27:49,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:27:49,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:27:49,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:27:49,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:27:49,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:27:49,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:27:49,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:27:49,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:27:49,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:27:49,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:27:49,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:27:49,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:27:49,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:27:49,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:27:49,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:27:49,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:27:49,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:27:49,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:27:49,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:27:49,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:27:49,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:27:49,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:27:49,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:27:49,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:27:49,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:27:49,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:27:49,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:27:49,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:27:49,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:27:49,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:27:49,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:27:49,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:27:49,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:27:49,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:27:49,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:27:49,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:27:49,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:27:49,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:27:49,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:27:49,574 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:27:49,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:27:49,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:27:49,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:27:49,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:27:49,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:27:49,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:27:49,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:27:49,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:27:49,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:27:49,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:27:49,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:27:49,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:27:49,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:27:49,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:27:49,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:27:49,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:27:49,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:27:49,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-06 11:27:49,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:27:49,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:27:49,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:27:49,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:27:49,766 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:27:49,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-06 11:27:49,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf65d0f1/47e2bbcc4a8542fc883a4bfe9f66ae44/FLAGc105b2aac [2021-11-06 11:27:50,418 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:27:50,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-06 11:27:50,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf65d0f1/47e2bbcc4a8542fc883a4bfe9f66ae44/FLAGc105b2aac [2021-11-06 11:27:50,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf65d0f1/47e2bbcc4a8542fc883a4bfe9f66ae44 [2021-11-06 11:27:50,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:27:50,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:27:50,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:27:50,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:27:50,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:27:50,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:27:50" (1/1) ... [2021-11-06 11:27:50,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c42bef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:50, skipping insertion in model container [2021-11-06 11:27:50,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:27:50" (1/1) ... [2021-11-06 11:27:50,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:27:50,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:27:51,131 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_dynamic_harness-1.i[4505,4518] [2021-11-06 11:27:51,137 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_dynamic_harness-1.i[4565,4578] [2021-11-06 11:27:51,150 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:27:51,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:27:51,660 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:27:51,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:51,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:27:51,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:27:51,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:27:51,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:27:51,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:27:51,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:27:51,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:27:51,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:27:51,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:27:51,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:27:52,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:27:52,063 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:27:52,081 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_dynamic_harness-1.i[4505,4518] [2021-11-06 11:27:52,082 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_dynamic_harness-1.i[4565,4578] [2021-11-06 11:27:52,084 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:27:52,085 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:27:52,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:27:52,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:27:52,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:27:52,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:27:52,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:27:52,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:27:52,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:27:52,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:27:52,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:27:52,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:27:52,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:27:52,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:52,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:27:52,401 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:27:52,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52 WrapperNode [2021-11-06 11:27:52,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:27:52,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:27:52,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:27:52,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:27:52,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:27:52,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:27:52,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:27:52,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:27:52,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:27:52,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:27:52,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:27:52,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:27:52,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (1/1) ... [2021-11-06 11:27:52,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:27:52,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:52,733 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) [2021-11-06 11:27:52,748 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 [2021-11-06 11:27:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:27:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:27:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:27:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:27:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:27:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:28:00,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:28:00,032 INFO L299 CfgBuilder]: Removed 215 assume(true) statements. [2021-11-06 11:28:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:00 BoogieIcfgContainer [2021-11-06 11:28:00,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:28:00,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:28:00,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:28:00,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:28:00,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:27:50" (1/3) ... [2021-11-06 11:28:00,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66674a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:00, skipping insertion in model container [2021-11-06 11:28:00,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:52" (2/3) ... [2021-11-06 11:28:00,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66674a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:00, skipping insertion in model container [2021-11-06 11:28:00,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:00" (3/3) ... [2021-11-06 11:28:00,039 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2021-11-06 11:28:00,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:28:00,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 11:28:00,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:28:00,075 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 [2021-11-06 11:28:00,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 11:28:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 11:28:00,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:00,093 INFO L513 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] [2021-11-06 11:28:00,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:28:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1584459694, now seen corresponding path program 1 times [2021-11-06 11:28:00,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:00,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884573300] [2021-11-06 11:28:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:00,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:00,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:00,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884573300] [2021-11-06 11:28:00,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884573300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:00,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:00,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:28:00,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833613656] [2021-11-06 11:28:00,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:28:00,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:28:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:00,485 INFO L87 Difference]: Start difference. First operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-06 11:28:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:00,512 INFO L93 Difference]: Finished difference Result 562 states and 781 transitions. [2021-11-06 11:28:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:28:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-06 11:28:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:00,520 INFO L225 Difference]: With dead ends: 562 [2021-11-06 11:28:00,520 INFO L226 Difference]: Without dead ends: 277 [2021-11-06 11:28:00,522 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-06 11:28:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-06 11:28:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.3068181818181819) internal successors, (345), 276 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-06 11:28:00,559 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 44 [2021-11-06 11:28:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:00,559 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-06 11:28:00,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-06 11:28:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-06 11:28:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-06 11:28:00,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:00,561 INFO L513 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] [2021-11-06 11:28:00,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:28:00,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:28:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -90645083, now seen corresponding path program 1 times [2021-11-06 11:28:00,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:00,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712337376] [2021-11-06 11:28:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:00,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:00,627 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:00,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588952866] [2021-11-06 11:28:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:00,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:00,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:00,630 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) [2021-11-06 11:28:00,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 11:28:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:01,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2510 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:28:01,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:01,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:01,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:01,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712337376] [2021-11-06 11:28:01,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:01,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588952866] [2021-11-06 11:28:01,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588952866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:01,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:01,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:28:01,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161079405] [2021-11-06 11:28:01,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:28:01,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:01,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:28:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:28:01,525 INFO L87 Difference]: Start difference. First operand 277 states and 345 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-11-06 11:28:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:01,908 INFO L93 Difference]: Finished difference Result 690 states and 870 transitions. [2021-11-06 11:28:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:28:01,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2021-11-06 11:28:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:01,911 INFO L225 Difference]: With dead ends: 690 [2021-11-06 11:28:01,911 INFO L226 Difference]: Without dead ends: 517 [2021-11-06 11:28:01,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:28:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-11-06 11:28:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 280. [2021-11-06 11:28:01,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 267 states have (on average 1.303370786516854) internal successors, (348), 279 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 348 transitions. [2021-11-06 11:28:01,924 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 348 transitions. Word has length 56 [2021-11-06 11:28:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:01,925 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 348 transitions. [2021-11-06 11:28:01,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-11-06 11:28:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 348 transitions. [2021-11-06 11:28:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 11:28:01,926 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:01,926 INFO L513 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] [2021-11-06 11:28:01,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:02,147 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 [2021-11-06 11:28:02,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:28:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1401852718, now seen corresponding path program 1 times [2021-11-06 11:28:02,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:02,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604975573] [2021-11-06 11:28:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:02,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:02,209 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:02,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116792474] [2021-11-06 11:28:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:02,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:02,211 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) [2021-11-06 11:28:02,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 11:28:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:02,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2504 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-06 11:28:02,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:03,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:03,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604975573] [2021-11-06 11:28:03,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:03,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116792474] [2021-11-06 11:28:03,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116792474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:03,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:03,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 11:28:03,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135036433] [2021-11-06 11:28:03,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:28:03,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:03,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:28:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:28:03,181 INFO L87 Difference]: Start difference. First operand 280 states and 348 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:04,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:04,096 INFO L93 Difference]: Finished difference Result 549 states and 687 transitions. [2021-11-06 11:28:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 11:28:04,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-06 11:28:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:04,098 INFO L225 Difference]: With dead ends: 549 [2021-11-06 11:28:04,098 INFO L226 Difference]: Without dead ends: 547 [2021-11-06 11:28:04,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:28:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-11-06 11:28:04,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 282. [2021-11-06 11:28:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 269 states have (on average 1.3011152416356877) internal successors, (350), 281 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 350 transitions. [2021-11-06 11:28:04,106 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 350 transitions. Word has length 57 [2021-11-06 11:28:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:04,107 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 350 transitions. [2021-11-06 11:28:04,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 350 transitions. [2021-11-06 11:28:04,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 11:28:04,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:04,108 INFO L513 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] [2021-11-06 11:28:04,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 11:28:04,323 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 [2021-11-06 11:28:04,324 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:28:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1401912300, now seen corresponding path program 1 times [2021-11-06 11:28:04,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:04,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245570931] [2021-11-06 11:28:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:04,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:04,376 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:04,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937265406] [2021-11-06 11:28:04,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:04,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:04,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:04,378 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) [2021-11-06 11:28:04,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 11:36:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:36:35,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:36:35,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:36:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:36:36,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:36:36,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245570931] [2021-11-06 11:36:36,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:36:36,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937265406] [2021-11-06 11:36:36,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937265406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:36:36,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:36:36,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:36:36,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763479382] [2021-11-06 11:36:36,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:36:36,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:36:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:36:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:36:36,114 INFO L87 Difference]: Start difference. First operand 282 states and 350 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:36:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:36:36,154 INFO L93 Difference]: Finished difference Result 533 states and 666 transitions. [2021-11-06 11:36:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:36:36,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-06 11:36:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:36:36,156 INFO L225 Difference]: With dead ends: 533 [2021-11-06 11:36:36,156 INFO L226 Difference]: Without dead ends: 282 [2021-11-06 11:36:36,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:36:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-06 11:36:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-06 11:36:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 269 states have (on average 1.2936802973977695) internal successors, (348), 281 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:36:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2021-11-06 11:36:36,164 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 57 [2021-11-06 11:36:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:36:36,164 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2021-11-06 11:36:36,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:36:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2021-11-06 11:36:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 11:36:36,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:36:36,165 INFO L513 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] [2021-11-06 11:36:36,379 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-06 11:36:36,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:36:36,433 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 [2021-11-06 11:36:36,433 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:36:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:36:36,434 INFO L85 PathProgramCache]: Analyzing trace with hash -147891285, now seen corresponding path program 1 times [2021-11-06 11:36:36,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:36:36,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557901570] [2021-11-06 11:36:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:36:36,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:36:36,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:36:36,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861743403] [2021-11-06 11:36:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:36:36,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:36:36,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:36:36,504 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) [2021-11-06 11:36:36,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 11:39:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:10,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2523 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:39:10,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:10,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:10,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557901570] [2021-11-06 11:39:10,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:10,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861743403] [2021-11-06 11:39:10,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861743403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:10,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:10,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:39:10,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652185326] [2021-11-06 11:39:10,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:39:10,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:39:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:39:10,446 INFO L87 Difference]: Start difference. First operand 282 states and 348 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) [2021-11-06 11:39:10,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:10,511 INFO L93 Difference]: Finished difference Result 537 states and 669 transitions. [2021-11-06 11:39:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:39:10,512 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 [2021-11-06 11:39:10,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:10,513 INFO L225 Difference]: With dead ends: 537 [2021-11-06 11:39:10,513 INFO L226 Difference]: Without dead ends: 286 [2021-11-06 11:39:10,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:39:10,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-06 11:39:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2021-11-06 11:39:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 271 states have (on average 1.2915129151291513) internal successors, (350), 283 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:10,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 350 transitions. [2021-11-06 11:39:10,519 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 350 transitions. Word has length 59 [2021-11-06 11:39:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:10,520 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 350 transitions. [2021-11-06 11:39:10,520 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) [2021-11-06 11:39:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 350 transitions. [2021-11-06 11:39:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-06 11:39:10,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:10,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:10,739 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2021-11-06 11:39:10,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:10,751 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 [2021-11-06 11:39:10,751 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 11:39:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1284744177, now seen corresponding path program 1 times [2021-11-06 11:39:10,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:10,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935805616] [2021-11-06 11:39:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:10,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:10,817 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:10,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109438353] [2021-11-06 11:39:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:10,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:10,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:10,819 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) [2021-11-06 11:39:10,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15