./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_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_pop_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 c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:20:35,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:20:35,843 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:20:35,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:20:35,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:20:35,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:20:35,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:20:35,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:20:35,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:20:35,891 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:20:35,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:20:35,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:20:35,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:20:35,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:20:35,898 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:20:35,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:20:35,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:20:35,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:20:35,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:20:35,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:20:35,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:20:35,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:20:35,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:20:35,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:20:35,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:20:35,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:20:35,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:20:35,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:20:35,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:20:35,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:20:35,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:20:35,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:20:35,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:20:35,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:20:35,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:20:35,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:20:35,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:20:35,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:20:35,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:20:35,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 [2024-11-22 14:20:36,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:20:36,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:20:36,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:20:36,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:20:36,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:20:36,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2024-11-22 14:20:37,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:20:37,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:20:37,929 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2024-11-22 14:20:37,974 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e26cc80d/59e61ff0d46a4764baa8165f3dff672a/FLAG76759c666 [2024-11-22 14:20:38,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e26cc80d/59e61ff0d46a4764baa8165f3dff672a [2024-11-22 14:20:38,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:20:38,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:20:38,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:20:38,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:20:38,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:20:38,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:38" (1/1) ... [2024-11-22 14:20:38,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a0c686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:38, skipping insertion in model container [2024-11-22 14:20:38,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:38" (1/1) ... [2024-11-22 14:20:38,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:20:38,509 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_pop_harness_negated.i[4496,4509] [2024-11-22 14:20:38,517 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_pop_harness_negated.i[4556,4569] [2024-11-22 14:20:39,150 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,153 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,153 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,154 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,156 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,166 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,166 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,167 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,168 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,169 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,170 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,170 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,170 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,551 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,556 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,600 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,602 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,602 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,608 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,610 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,610 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,615 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,616 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,616 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:20:39,661 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:20:39,672 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_pop_harness_negated.i[4496,4509] [2024-11-22 14:20:39,673 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_pop_harness_negated.i[4556,4569] [2024-11-22 14:20:39,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,702 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,702 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,703 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,703 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,708 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,708 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,709 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,709 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,711 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,711 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,711 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,773 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2024-11-22 14:20:39,799 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,806 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,806 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,810 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,811 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,811 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:20:39,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:20:39,975 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:20:39,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39 WrapperNode [2024-11-22 14:20:39,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:20:39,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:20:39,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:20:39,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:20:39,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,144 INFO L138 Inliner]: procedures = 686, calls = 1930, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1062 [2024-11-22 14:20:40,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:20:40,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:20:40,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:20:40,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:20:40,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,240 INFO L175 MemorySlicer]: Split 392 memory accesses to 6 slices as follows [2, 96, 261, 17, 13, 3]. 67 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [2, 0, 12, 4, 11, 1]. The 262 writes are split as follows [0, 18, 240, 3, 0, 1]. [2024-11-22 14:20:40,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:20:40,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:20:40,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:20:40,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:20:40,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (1/1) ... [2024-11-22 14:20:40,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:20:40,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:20:40,355 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 14:20:40,357 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 14:20:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-22 14:20:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-22 14:20:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-22 14:20:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-22 14:20:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:20:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:20:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:20:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:20:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:20:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:20:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:20:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-22 14:20:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-22 14:20:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:20:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:20:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:20:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:20:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:20:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2024-11-22 14:20:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2024-11-22 14:20:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:20:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:20:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:20:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-22 14:20:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-22 14:20:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-22 14:20:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-22 14:20:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-22 14:20:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 14:20:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 14:20:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 14:20:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-22 14:20:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-22 14:20:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-22 14:20:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 14:20:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 14:20:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 14:20:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-22 14:20:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-22 14:20:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:20:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-22 14:20:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-22 14:20:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:20:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-22 14:20:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:20:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:20:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:20:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:20:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-22 14:20:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-22 14:20:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:20:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:20:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2024-11-22 14:20:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2024-11-22 14:20:40,716 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:20:40,719 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:20:46,886 INFO L? ?]: Removed 258 outVars from TransFormulas that were not future-live. [2024-11-22 14:20:46,886 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:20:46,910 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:20:46,911 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 14:20:46,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:46 BoogieIcfgContainer [2024-11-22 14:20:46,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:20:46,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:20:46,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:20:46,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:20:46,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:20:38" (1/3) ... [2024-11-22 14:20:46,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688834b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:46, skipping insertion in model container [2024-11-22 14:20:46,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:39" (2/3) ... [2024-11-22 14:20:46,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688834b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:46, skipping insertion in model container [2024-11-22 14:20:46,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:46" (3/3) ... [2024-11-22 14:20:46,919 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2024-11-22 14:20:46,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:20:46,932 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 14:20:46,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:20:47,001 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;@5b97700e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:20:47,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 14:20:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 265 states have (on average 1.2452830188679245) internal successors, (330), 268 states have internal predecessors, (330), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-22 14:20:47,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 14:20:47,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:20:47,023 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:20:47,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:20:47,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:20:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1039494375, now seen corresponding path program 1 times [2024-11-22 14:20:47,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:20:47,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936577841] [2024-11-22 14:20:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:20:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:20:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:20:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-22 14:20:52,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:20:52,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936577841] [2024-11-22 14:20:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936577841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:20:52,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555548015] [2024-11-22 14:20:52,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:20:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:20:52,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:20:52,347 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 14:20:52,349 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 14:20:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:20:57,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 14:20:57,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:20:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-22 14:20:57,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:20:57,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555548015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:20:57,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:20:57,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 14:20:57,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306584931] [2024-11-22 14:20:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:20:57,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:20:57,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:20:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:20:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:20:57,816 INFO L87 Difference]: Start difference. First operand has 457 states, 265 states have (on average 1.2452830188679245) internal successors, (330), 268 states have internal predecessors, (330), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 14:20:57,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:20:57,893 INFO L93 Difference]: Finished difference Result 886 states and 1399 transitions. [2024-11-22 14:20:57,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:20:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 163 [2024-11-22 14:20:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:20:57,918 INFO L225 Difference]: With dead ends: 886 [2024-11-22 14:20:57,918 INFO L226 Difference]: Without dead ends: 450 [2024-11-22 14:20:57,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 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 14:20:57,933 INFO L432 NwaCegarLoop]: 643 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, 643 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 14:20:57,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:20:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-22 14:20:58,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-22 14:20:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 259 states have (on average 1.22007722007722) internal successors, (316), 262 states have internal predecessors, (316), 162 states have call successors, (162), 28 states have call predecessors, (162), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-22 14:20:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 638 transitions. [2024-11-22 14:20:58,041 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 638 transitions. Word has length 163 [2024-11-22 14:20:58,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:20:58,042 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 638 transitions. [2024-11-22 14:20:58,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 14:20:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 638 transitions. [2024-11-22 14:20:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 14:20:58,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:20:58,050 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:20:58,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 14:20:58,250 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 14:20:58,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:20:58,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:20:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1287744279, now seen corresponding path program 1 times [2024-11-22 14:20:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:20:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236971822] [2024-11-22 14:20:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:20:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:21:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-22 14:21:03,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:21:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236971822] [2024-11-22 14:21:03,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236971822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:21:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15088835] [2024-11-22 14:21:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:03,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:03,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:21:03,798 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 14:21:03,800 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 14:21:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:09,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 14:21:09,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:21:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-22 14:21:10,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:21:10,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15088835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:21:10,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:21:10,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 14:21:10,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890614054] [2024-11-22 14:21:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:21:10,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:21:10,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:21:10,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:21:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:21:10,560 INFO L87 Difference]: Start difference. First operand 450 states and 638 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 14:21:14,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:21:14,019 INFO L93 Difference]: Finished difference Result 851 states and 1225 transitions. [2024-11-22 14:21:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:21:14,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 163 [2024-11-22 14:21:14,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:21:14,025 INFO L225 Difference]: With dead ends: 851 [2024-11-22 14:21:14,025 INFO L226 Difference]: Without dead ends: 452 [2024-11-22 14:21:14,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 14:21:14,028 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 641 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:21:14,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 2218 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-22 14:21:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-22 14:21:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-22 14:21:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 260 states have (on average 1.2192307692307693) internal successors, (317), 264 states have internal predecessors, (317), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (173), 160 states have call predecessors, (173), 160 states have call successors, (173) [2024-11-22 14:21:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 652 transitions. [2024-11-22 14:21:14,077 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 652 transitions. Word has length 163 [2024-11-22 14:21:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:21:14,077 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 652 transitions. [2024-11-22 14:21:14,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 14:21:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 652 transitions. [2024-11-22 14:21:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 14:21:14,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:21:14,080 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:21:14,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 14:21:14,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 14:21:14,283 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:21:14,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:21:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1058970457, now seen corresponding path program 1 times [2024-11-22 14:21:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:21:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433032748] [2024-11-22 14:21:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:21:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-22 14:21:20,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:21:20,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433032748] [2024-11-22 14:21:20,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433032748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:21:20,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57676793] [2024-11-22 14:21:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:20,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:20,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:21:20,544 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) [2024-11-22 14:21:20,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:21:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:25,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 4587 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:21:25,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:21:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-22 14:21:27,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:21:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57676793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:21:27,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:21:27,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 14:21:27,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934492918] [2024-11-22 14:21:27,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:21:27,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:21:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:21:27,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:21:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 14:21:27,240 INFO L87 Difference]: Start difference. First operand 452 states and 652 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:21:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:21:33,850 INFO L93 Difference]: Finished difference Result 874 states and 1296 transitions. [2024-11-22 14:21:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:21:33,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2024-11-22 14:21:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:21:33,862 INFO L225 Difference]: With dead ends: 874 [2024-11-22 14:21:33,864 INFO L226 Difference]: Without dead ends: 473 [2024-11-22 14:21:33,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-22 14:21:33,872 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 691 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-22 14:21:33,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3180 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-22 14:21:33,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-22 14:21:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2024-11-22 14:21:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 280 states have internal predecessors, (339), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2024-11-22 14:21:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2024-11-22 14:21:33,996 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 171 [2024-11-22 14:21:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:21:33,997 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2024-11-22 14:21:33,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:21:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2024-11-22 14:21:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-22 14:21:34,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:21:34,000 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:34,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 14:21:34,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:34,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:21:34,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:21:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1730757284, now seen corresponding path program 1 times [2024-11-22 14:21:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:21:34,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659681147] [2024-11-22 14:21:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:34,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:21:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-22 14:21:39,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:21:39,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659681147] [2024-11-22 14:21:39,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659681147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:21:39,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125285929] [2024-11-22 14:21:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:39,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:39,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:21:39,659 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) [2024-11-22 14:21:39,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 14:21:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:44,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 4714 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:21:44,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:21:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-22 14:21:46,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:21:46,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125285929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:21:46,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:21:46,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-22 14:21:46,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724154871] [2024-11-22 14:21:46,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:21:46,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 14:21:46,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:21:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 14:21:46,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 14:21:46,205 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-22 14:21:51,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:21:51,197 INFO L93 Difference]: Finished difference Result 897 states and 1355 transitions. [2024-11-22 14:21:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 14:21:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2024-11-22 14:21:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:21:51,208 INFO L225 Difference]: With dead ends: 897 [2024-11-22 14:21:51,208 INFO L226 Difference]: Without dead ends: 477 [2024-11-22 14:21:51,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:21:51,211 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 657 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-22 14:21:51,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 2716 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-22 14:21:51,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-22 14:21:51,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 471. [2024-11-22 14:21:51,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 280 states have internal predecessors, (339), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2024-11-22 14:21:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2024-11-22 14:21:51,230 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 186 [2024-11-22 14:21:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:21:51,231 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2024-11-22 14:21:51,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-22 14:21:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2024-11-22 14:21:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 14:21:51,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:21:51,233 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:51,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 14:21:51,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:51,434 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:21:51,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:21:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2126081529, now seen corresponding path program 1 times [2024-11-22 14:21:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:21:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731534000] [2024-11-22 14:21:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:21:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:21:57,114 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 14:21:57,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:21:57,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731534000] [2024-11-22 14:21:57,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731534000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:21:57,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384598445] [2024-11-22 14:21:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:21:57,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:21:57,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:21:57,117 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) [2024-11-22 14:21:57,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 14:22:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:22:02,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 4781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 14:22:02,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:22:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-22 14:22:04,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:22:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384598445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:22:04,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:22:04,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-22 14:22:04,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476416313] [2024-11-22 14:22:04,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:22:04,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:22:04,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:22:04,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:22:04,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:22:04,449 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29)