./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_s_swap_harness_negated.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 --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 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:23:21,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:23:21,329 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:23:21,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:23:21,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:23:21,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:23:21,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:23:21,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:23:21,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:23:21,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:23:21,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:23:21,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:23:21,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:23:21,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:23:21,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:23:21,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:23:21,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:23:21,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:23:21,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:23:21,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:23:21,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:23:21,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:23:21,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:23:21,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:23:21,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:23:21,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:23:21,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:23:21,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:23:21,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:23:21,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:21,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:23:21,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:23:21,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:23:21,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:23:21,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:23:21,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:23:21,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:23:21,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:23:21,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:23:21,393 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 [2024-11-22 14:23:21,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:23:21,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:23:21,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:23:21,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:23:21,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:23:21,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2024-11-22 14:23:23,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:23:23,827 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:23:23,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2024-11-22 14:23:23,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f612d4bb/3aa2e8fa468f4b398aeaa490034a5d52/FLAGdc0be665c [2024-11-22 14:23:23,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f612d4bb/3aa2e8fa468f4b398aeaa490034a5d52 [2024-11-22 14:23:23,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:23:23,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:23:23,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:23,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:23:23,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:23:23,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:23" (1/1) ... [2024-11-22 14:23:23,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41bc18a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:23, skipping insertion in model container [2024-11-22 14:23:23,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:23" (1/1) ... [2024-11-22 14:23:24,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:23:24,384 WARN L250 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_s_swap_harness_negated.i[4499,4512] [2024-11-22 14:23:24,394 WARN L250 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_s_swap_harness_negated.i[4559,4572] [2024-11-22 14:23:25,171 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,172 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,172 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,173 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,176 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,191 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,191 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,198 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,200 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,200 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,201 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,623 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,630 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,696 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,700 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,702 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,702 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,704 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,705 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,705 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,705 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,735 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,743 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,743 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:25,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:23:25,815 WARN L250 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_s_swap_harness_negated.i[4499,4512] [2024-11-22 14:23:25,816 WARN L250 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_s_swap_harness_negated.i[4559,4572] [2024-11-22 14:23:25,882 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,883 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,886 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,887 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,887 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,898 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,900 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,901 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,901 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,902 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,902 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,903 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,903 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:25,993 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,001 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7738-7749] [2024-11-22 14:23:26,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,037 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,037 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,037 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,041 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,044 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,044 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,048 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,049 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,051 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,051 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,056 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,057 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,057 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:26,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:26,308 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:23:26,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26 WrapperNode [2024-11-22 14:23:26,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:26,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:26,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:23:26,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:23:26,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,477 INFO L138 Inliner]: procedures = 687, calls = 1963, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 791 [2024-11-22 14:23:26,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:26,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:23:26,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:23:26,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:23:26,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,589 INFO L175 MemorySlicer]: Split 355 memory accesses to 8 slices as follows [238, 2, 5, 5, 81, 3, 7, 14]. 67 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [6, 2, 0, 0, 5, 1, 0, 5]. The 258 writes are split as follows [232, 0, 2, 2, 17, 1, 2, 2]. [2024-11-22 14:23:26,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:23:26,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:23:26,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:23:26,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:23:26,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (1/1) ... [2024-11-22 14:23:26,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:26,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 14:23:26,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 14:23:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-22 14:23:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-22 14:23:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:23:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:23:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:23:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:23:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:23:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:23:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:23:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:23:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:23:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:23:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:23:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:23:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:23:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:23:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:23:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:23:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:23:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:23:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:23:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:23:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:23:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:23:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:23:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 14:23:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 14:23:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:23:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:23:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:23:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:23:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-22 14:23:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-22 14:23:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:23:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:23:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 14:23:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 14:23:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-22 14:23:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-22 14:23:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-22 14:23:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-22 14:23:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:23:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:23:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:23:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:23:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:23:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:23:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:23:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:23:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:23:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 14:23:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 14:23:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:23:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:23:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:23:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:23:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:23:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 14:23:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 14:23:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-22 14:23:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-22 14:23:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:23:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:23:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:23:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:23:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:23:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:23:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 14:23:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 14:23:27,144 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:23:27,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:23:33,431 INFO L? ?]: Removed 186 outVars from TransFormulas that were not future-live. [2024-11-22 14:23:33,431 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:23:33,451 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:23:33,451 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 14:23:33,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:33 BoogieIcfgContainer [2024-11-22 14:23:33,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:23:33,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:23:33,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:23:33,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:23:33,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:23:23" (1/3) ... [2024-11-22 14:23:33,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64979a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:33, skipping insertion in model container [2024-11-22 14:23:33,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:26" (2/3) ... [2024-11-22 14:23:33,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64979a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:33, skipping insertion in model container [2024-11-22 14:23:33,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:33" (3/3) ... [2024-11-22 14:23:33,461 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_swap_harness_negated.i [2024-11-22 14:23:33,478 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:23:33,478 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:23:33,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:23:33,556 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fca3e33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:23:33,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:23:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 141 states have internal predecessors, (171), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 14:23:33,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 14:23:33,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:33,577 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:23:33,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:33,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1366410741, now seen corresponding path program 1 times [2024-11-22 14:23:33,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:33,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118597609] [2024-11-22 14:23:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:33,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:23:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-22 14:23:39,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:23:39,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118597609] [2024-11-22 14:23:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118597609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:23:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965632973] [2024-11-22 14:23:39,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:39,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:23:39,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:39,783 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) [2024-11-22 14:23:39,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:23:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:45,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 4503 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 14:23:45,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:23:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-22 14:23:45,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:23:45,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965632973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:23:45,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:23:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 14:23:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381843602] [2024-11-22 14:23:45,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:23:45,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:23:45,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:23:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:23:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:23:45,781 INFO L87 Difference]: Start difference. First operand has 218 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 141 states have internal predecessors, (171), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 14:23:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:23:45,836 INFO L93 Difference]: Finished difference Result 413 states and 585 transitions. [2024-11-22 14:23:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:23:45,840 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2024-11-22 14:23:45,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:23:45,849 INFO L225 Difference]: With dead ends: 413 [2024-11-22 14:23:45,849 INFO L226 Difference]: Without dead ends: 213 [2024-11-22 14:23:45,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:23:45,860 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:23:45,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:23:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-22 14:23:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-22 14:23:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 136 states have (on average 1.2058823529411764) internal successors, (164), 137 states have internal predecessors, (164), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 14:23:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 281 transitions. [2024-11-22 14:23:45,915 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 281 transitions. Word has length 142 [2024-11-22 14:23:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:23:45,916 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 281 transitions. [2024-11-22 14:23:45,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 14:23:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 281 transitions. [2024-11-22 14:23:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 14:23:45,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:45,920 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:23:45,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 14:23:46,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 14:23:46,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:46,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2030466569, now seen corresponding path program 1 times [2024-11-22 14:23:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:46,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741154800] [2024-11-22 14:23:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:23:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-22 14:23:54,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:23:54,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741154800] [2024-11-22 14:23:54,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741154800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:23:54,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:23:54,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:23:54,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851088944] [2024-11-22 14:23:54,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:23:54,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:23:54,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:23:54,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:23:54,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:23:54,559 INFO L87 Difference]: Start difference. First operand 213 states and 281 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-22 14:23:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:23:55,274 INFO L93 Difference]: Finished difference Result 223 states and 293 transitions. [2024-11-22 14:23:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:23:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 142 [2024-11-22 14:23:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:23:55,281 INFO L225 Difference]: With dead ends: 223 [2024-11-22 14:23:55,283 INFO L226 Difference]: Without dead ends: 221 [2024-11-22 14:23:55,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:23:55,285 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 3 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 14:23:55,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1370 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 14:23:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-22 14:23:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2024-11-22 14:23:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 140 states have (on average 1.2) internal successors, (168), 142 states have internal predecessors, (168), 60 states have call successors, (60), 18 states have call predecessors, (60), 19 states have return successors, (62), 59 states have call predecessors, (62), 59 states have call successors, (62) [2024-11-22 14:23:55,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 290 transitions. [2024-11-22 14:23:55,320 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 290 transitions. Word has length 142 [2024-11-22 14:23:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:23:55,323 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 290 transitions. [2024-11-22 14:23:55,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-22 14:23:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 290 transitions. [2024-11-22 14:23:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 14:23:55,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:55,329 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:23:55,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 14:23:55,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:55,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:55,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1906002031, now seen corresponding path program 1 times [2024-11-22 14:23:55,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:55,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463510673] [2024-11-22 14:23:55,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:55,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-22 14:24:01,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:01,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463510673] [2024-11-22 14:24:01,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463510673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:01,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:01,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:24:01,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104813440] [2024-11-22 14:24:01,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:01,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:24:01,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:01,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:24:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:01,992 INFO L87 Difference]: Start difference. First operand 220 states and 290 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 14:24:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:03,319 INFO L93 Difference]: Finished difference Result 392 states and 513 transitions. [2024-11-22 14:24:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 14:24:03,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 150 [2024-11-22 14:24:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:03,323 INFO L225 Difference]: With dead ends: 392 [2024-11-22 14:24:03,323 INFO L226 Difference]: Without dead ends: 173 [2024-11-22 14:24:03,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 14:24:03,326 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 60 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:03,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1157 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 14:24:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-22 14:24:03,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2024-11-22 14:24:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 104 states have (on average 1.1538461538461537) internal successors, (120), 105 states have internal predecessors, (120), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 14:24:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 225 transitions. [2024-11-22 14:24:03,344 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 225 transitions. Word has length 150 [2024-11-22 14:24:03,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:03,345 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 225 transitions. [2024-11-22 14:24:03,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 14:24:03,346 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 225 transitions. [2024-11-22 14:24:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 14:24:03,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:03,348 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:03,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 14:24:03,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:03,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:03,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1462596531, now seen corresponding path program 1 times [2024-11-22 14:24:03,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:03,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619490522] [2024-11-22 14:24:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:03,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-22 14:24:11,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:11,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619490522] [2024-11-22 14:24:11,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619490522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:24:11,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340052028] [2024-11-22 14:24:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:11,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:11,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:24:11,752 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) [2024-11-22 14:24:11,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:24:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:17,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 4514 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-22 14:24:17,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:17,199 INFO L378 Elim1Store]: Elim1 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 13 treesize of output 9 [2024-11-22 14:24:17,270 INFO L378 Elim1Store]: Elim1 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 13 treesize of output 9 [2024-11-22 14:24:23,707 INFO L378 Elim1Store]: Elim1 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 31 treesize of output 15 [2024-11-22 14:24:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 14:24:24,145 INFO L349 Elim1Store]: treesize reduction 39, result has 32.8 percent of original size [2024-11-22 14:24:24,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2024-11-22 14:24:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 14:24:24,504 INFO L349 Elim1Store]: treesize reduction 39, result has 32.8 percent of original size [2024-11-22 14:24:24,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2024-11-22 14:24:31,212 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 14:24:31,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2024-11-22 14:24:31,233 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 14:24:31,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2024-11-22 14:24:31,257 INFO L378 Elim1Store]: Elim1 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 31 treesize of output 15 [2024-11-22 14:24:35,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15