./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_sift_down_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:22:39,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:22:39,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:22:39,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:22:39,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:22:39,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:22:39,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:22:39,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:22:39,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:22:39,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:22:39,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:22:39,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:22:39,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:22:39,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:22:39,909 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:22:39,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:22:39,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:22:39,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:22:39,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:22:39,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:22:39,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:22:39,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:22:39,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:22:39,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:22:39,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:22:39,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:22:39,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:22:39,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:22:39,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:22:39,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:39,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:22:39,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:22:39,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:22:39,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:22:39,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:22:39,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:22:39,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:22:39,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:22:39,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:22:39,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2024-11-19 02:22:40,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:22:40,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:22:40,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:22:40,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:22:40,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:22:40,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-11-19 02:22:41,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:22:41,754 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:22:41,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-11-19 02:22:41,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621d53a8a/4805e8b33dee4e55aaaa121a2033e1e1/FLAGfaaf9908c [2024-11-19 02:22:41,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621d53a8a/4805e8b33dee4e55aaaa121a2033e1e1 [2024-11-19 02:22:41,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:22:41,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:22:41,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:41,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:22:41,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:22:41,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:41" (1/1) ... [2024-11-19 02:22:41,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f730b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:41, skipping insertion in model container [2024-11-19 02:22:41,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:41" (1/1) ... [2024-11-19 02:22:42,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:22:42,326 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_sift_down_harness.i[4504,4517] [2024-11-19 02:22:42,332 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_sift_down_harness.i[4564,4577] [2024-11-19 02:22:42,798 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,820 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,821 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,822 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,822 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,823 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:42,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,155 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,156 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,159 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,167 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,222 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,222 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,231 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,235 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,236 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,236 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:43,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:22:43,291 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_sift_down_harness.i[4504,4517] [2024-11-19 02:22:43,293 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_sift_down_harness.i[4564,4577] [2024-11-19 02:22:43,337 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,337 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,338 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,338 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,338 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,346 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,348 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,349 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,350 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,350 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,351 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,351 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,351 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,440 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,440 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,441 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-19 02:22:43,475 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,476 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,477 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,480 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,480 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,480 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,482 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,482 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,482 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,483 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,486 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,486 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,561 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,562 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,562 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:43,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:43,784 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:22:43,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43 WrapperNode [2024-11-19 02:22:43,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:43,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:43,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:22:43,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:22:43,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:43,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:43,958 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 850 [2024-11-19 02:22:43,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:43,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:22:43,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:22:43,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:22:43,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:43,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:43,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,046 INFO L175 MemorySlicer]: Split 342 memory accesses to 6 slices as follows [238, 2, 3, 66, 15, 18]. 70 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [6, 2, 1, 0, 4, 5]. The 259 writes are split as follows [232, 0, 1, 17, 3, 6]. [2024-11-19 02:22:44,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:22:44,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:22:44,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:22:44,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:22:44,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (1/1) ... [2024-11-19 02:22:44,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:44,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:44,147 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) [2024-11-19 02:22:44,156 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 [2024-11-19 02:22:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-19 02:22:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-19 02:22:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-19 02:22:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-19 02:22:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:22:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:22:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:22:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:22:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:22:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:22:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:22:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:22:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:22:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:22:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:22:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:22:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:22:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:22:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:22:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:22:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:22:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:22:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:22:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:22:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:22:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:22:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:22:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:22:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:22:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:22:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:22:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:22:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:22:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:22:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:22:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:22:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:22:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:22:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:22:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-19 02:22:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-19 02:22:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:22:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:22:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:22:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:22:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:22:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2024-11-19 02:22:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:22:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:22:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:22:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-19 02:22:44,202 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-19 02:22:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:22:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:22:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-19 02:22:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 02:22:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:22:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:22:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:22:44,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:22:44,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:22:50,663 INFO L? ?]: Removed 205 outVars from TransFormulas that were not future-live. [2024-11-19 02:22:50,664 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:22:50,682 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:22:50,682 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-19 02:22:50,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:50 BoogieIcfgContainer [2024-11-19 02:22:50,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:22:50,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:22:50,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:22:50,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:22:50,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:22:41" (1/3) ... [2024-11-19 02:22:50,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57378686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:50, skipping insertion in model container [2024-11-19 02:22:50,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:43" (2/3) ... [2024-11-19 02:22:50,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57378686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:50, skipping insertion in model container [2024-11-19 02:22:50,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:50" (3/3) ... [2024-11-19 02:22:50,693 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2024-11-19 02:22:50,706 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:22:50,706 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:22:50,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:22:50,772 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;@6a861990, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:22:50,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:22:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 328 states, 199 states have (on average 1.2311557788944723) internal successors, (245), 200 states have internal predecessors, (245), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-19 02:22:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 02:22:50,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:50,792 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2024-11-19 02:22:50,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:50,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash 213783487, now seen corresponding path program 1 times [2024-11-19 02:22:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:50,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658933929] [2024-11-19 02:22:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-19 02:22:56,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:56,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658933929] [2024-11-19 02:22:56,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658933929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:56,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456145352] [2024-11-19 02:22:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:56,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:56,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:56,029 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) [2024-11-19 02:22:56,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:23:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:01,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:23:01,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-19 02:23:01,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:01,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456145352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:01,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:01,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:23:01,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792961970] [2024-11-19 02:23:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:01,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:23:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:01,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:23:01,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:23:01,152 INFO L87 Difference]: Start difference. First operand has 328 states, 199 states have (on average 1.2311557788944723) internal successors, (245), 200 states have internal predecessors, (245), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 02:23:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:01,218 INFO L93 Difference]: Finished difference Result 633 states and 952 transitions. [2024-11-19 02:23:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:23:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2024-11-19 02:23:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:01,229 INFO L225 Difference]: With dead ends: 633 [2024-11-19 02:23:01,229 INFO L226 Difference]: Without dead ends: 323 [2024-11-19 02:23:01,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:23:01,237 INFO L432 NwaCegarLoop]: 446 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, 446 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 [2024-11-19 02:23:01,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:23:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-19 02:23:01,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-19 02:23:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 195 states have (on average 1.2) internal successors, (234), 196 states have internal predecessors, (234), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-19 02:23:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 441 transitions. [2024-11-19 02:23:01,290 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 441 transitions. Word has length 156 [2024-11-19 02:23:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:01,299 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 441 transitions. [2024-11-19 02:23:01,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 02:23:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 441 transitions. [2024-11-19 02:23:01,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 02:23:01,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:01,309 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2024-11-19 02:23:01,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 02:23:01,509 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 [2024-11-19 02:23:01,510 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:01,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1721016325, now seen corresponding path program 1 times [2024-11-19 02:23:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:01,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311722567] [2024-11-19 02:23:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:01,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-19 02:23:06,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311722567] [2024-11-19 02:23:06,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311722567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:06,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487452677] [2024-11-19 02:23:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:06,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:06,910 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) [2024-11-19 02:23:06,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:23:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:12,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:23:12,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-19 02:23:13,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:13,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487452677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:13,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:13,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:23:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911066741] [2024-11-19 02:23:13,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:13,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:23:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:23:13,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:23:13,206 INFO L87 Difference]: Start difference. First operand 323 states and 441 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:23:15,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:15,350 INFO L93 Difference]: Finished difference Result 600 states and 824 transitions. [2024-11-19 02:23:15,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:23:15,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2024-11-19 02:23:15,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:15,356 INFO L225 Difference]: With dead ends: 600 [2024-11-19 02:23:15,358 INFO L226 Difference]: Without dead ends: 325 [2024-11-19 02:23:15,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:23:15,361 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 443 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:15,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1543 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 02:23:15,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-19 02:23:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-19 02:23:15,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 196 states have (on average 1.1989795918367347) internal successors, (235), 198 states have internal predecessors, (235), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2024-11-19 02:23:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 446 transitions. [2024-11-19 02:23:15,386 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 446 transitions. Word has length 156 [2024-11-19 02:23:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:15,387 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 446 transitions. [2024-11-19 02:23:15,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:23:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 446 transitions. [2024-11-19 02:23:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 02:23:15,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:15,389 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2024-11-19 02:23:15,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:23:15,590 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 [2024-11-19 02:23:15,591 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:15,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1206135323, now seen corresponding path program 1 times [2024-11-19 02:23:15,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:15,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358241480] [2024-11-19 02:23:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:15,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-19 02:23:21,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:21,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358241480] [2024-11-19 02:23:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358241480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87298034] [2024-11-19 02:23:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:21,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:21,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:21,382 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) [2024-11-19 02:23:21,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:23:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:26,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 02:23:26,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-19 02:23:27,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:27,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87298034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:27,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:27,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-19 02:23:27,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970709999] [2024-11-19 02:23:27,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:27,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:23:27,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:27,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:23:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:23:27,820 INFO L87 Difference]: Start difference. First operand 325 states and 446 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-19 02:23:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:30,544 INFO L93 Difference]: Finished difference Result 623 states and 871 transitions. [2024-11-19 02:23:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:23:30,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2024-11-19 02:23:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:30,550 INFO L225 Difference]: With dead ends: 623 [2024-11-19 02:23:30,550 INFO L226 Difference]: Without dead ends: 346 [2024-11-19 02:23:30,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 02:23:30,552 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 40 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:30,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2382 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 02:23:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-19 02:23:30,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 344. [2024-11-19 02:23:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 212 states have (on average 1.2122641509433962) internal successors, (257), 214 states have internal predecessors, (257), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-19 02:23:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 483 transitions. [2024-11-19 02:23:30,593 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 483 transitions. Word has length 164 [2024-11-19 02:23:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:30,593 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 483 transitions. [2024-11-19 02:23:30,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-19 02:23:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 483 transitions. [2024-11-19 02:23:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 02:23:30,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:30,595 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2024-11-19 02:23:30,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:23:30,796 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 [2024-11-19 02:23:30,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:30,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:30,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1508351070, now seen corresponding path program 1 times [2024-11-19 02:23:30,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:30,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005288467] [2024-11-19 02:23:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:30,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 02:23:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:36,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005288467] [2024-11-19 02:23:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005288467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:36,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492306531] [2024-11-19 02:23:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:36,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:36,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:36,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:23:36,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 02:23:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:41,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 4666 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:23:41,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-19 02:23:43,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:43,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492306531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:43,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:43,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-19 02:23:43,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729909795] [2024-11-19 02:23:43,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:43,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:23:43,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:43,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:23:43,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:23:43,142 INFO L87 Difference]: Start difference. First operand 344 states and 483 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-19 02:23:46,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:46,573 INFO L93 Difference]: Finished difference Result 646 states and 915 transitions. [2024-11-19 02:23:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:23:46,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2024-11-19 02:23:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:46,578 INFO L225 Difference]: With dead ends: 646 [2024-11-19 02:23:46,578 INFO L226 Difference]: Without dead ends: 350 [2024-11-19 02:23:46,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-19 02:23:46,580 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 459 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:46,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1876 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 02:23:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-19 02:23:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 344. [2024-11-19 02:23:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 212 states have (on average 1.2122641509433962) internal successors, (257), 214 states have internal predecessors, (257), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-19 02:23:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 483 transitions. [2024-11-19 02:23:46,602 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 483 transitions. Word has length 179 [2024-11-19 02:23:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:46,602 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 483 transitions. [2024-11-19 02:23:46,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-19 02:23:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 483 transitions. [2024-11-19 02:23:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-19 02:23:46,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:46,605 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2024-11-19 02:23:46,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 02:23:46,805 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 [2024-11-19 02:23:46,805 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:46,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash -958764529, now seen corresponding path program 1 times [2024-11-19 02:23:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:46,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143334312] [2024-11-19 02:23:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-19 02:23:52,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:52,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143334312] [2024-11-19 02:23:52,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143334312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:52,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667262965] [2024-11-19 02:23:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:52,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:52,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:52,953 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) [2024-11-19 02:23:52,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 02:23:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:58,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 4738 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 02:23:58,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:24:00,001 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-19 02:24:00,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:24:00,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667262965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:24:00,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:24:00,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-19 02:24:00,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133962664] [2024-11-19 02:24:00,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:24:00,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:24:00,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:24:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:24:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:24:00,004 INFO L87 Difference]: Start difference. First operand 344 states and 483 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-19 02:24:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:24:03,328 INFO L93 Difference]: Finished difference Result 673 states and 954 transitions. [2024-11-19 02:24:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:24:03,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2024-11-19 02:24:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:24:03,333 INFO L225 Difference]: With dead ends: 673 [2024-11-19 02:24:03,333 INFO L226 Difference]: Without dead ends: 377 [2024-11-19 02:24:03,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 02:24:03,336 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 62 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:24:03,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2727 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-19 02:24:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-19 02:24:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 344. [2024-11-19 02:24:03,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 212 states have (on average 1.2122641509433962) internal successors, (257), 214 states have internal predecessors, (257), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-19 02:24:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 483 transitions. [2024-11-19 02:24:03,361 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 483 transitions. Word has length 195 [2024-11-19 02:24:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:24:03,361 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 483 transitions. [2024-11-19 02:24:03,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-19 02:24:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 483 transitions. [2024-11-19 02:24:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-19 02:24:03,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:24:03,364 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:24:03,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 02:24:03,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:24:03,565 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:24:03,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:24:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1311946216, now seen corresponding path program 2 times [2024-11-19 02:24:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:24:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956851609] [2024-11-19 02:24:03,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:24:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:24:07,921 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:24:07,921 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:24:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-19 02:24:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:24:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956851609] [2024-11-19 02:24:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956851609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:24:09,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:24:09,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:24:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159705625] [2024-11-19 02:24:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:24:09,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:24:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:24:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:24:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:24:09,152 INFO L87 Difference]: Start difference. First operand 344 states and 483 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-19 02:24:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:24:10,448 INFO L93 Difference]: Finished difference Result 607 states and 863 transitions. [2024-11-19 02:24:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:24:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 210 [2024-11-19 02:24:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:24:10,453 INFO L225 Difference]: With dead ends: 607 [2024-11-19 02:24:10,453 INFO L226 Difference]: Without dead ends: 346 [2024-11-19 02:24:10,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:24:10,456 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 65 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:24:10,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2392 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 02:24:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-19 02:24:10,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-19 02:24:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 213 states have (on average 1.2112676056338028) internal successors, (258), 216 states have internal predecessors, (258), 106 states have call successors, (106), 23 states have call predecessors, (106), 26 states have return successors, (122), 106 states have call predecessors, (122), 105 states have call successors, (122) [2024-11-19 02:24:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 486 transitions. [2024-11-19 02:24:10,476 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 486 transitions. Word has length 210 [2024-11-19 02:24:10,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:24:10,477 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 486 transitions. [2024-11-19 02:24:10,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-19 02:24:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 486 transitions. [2024-11-19 02:24:10,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-19 02:24:10,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:24:10,480 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-19 02:24:10,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 02:24:10,481 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:24:10,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:24:10,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1580459576, now seen corresponding path program 1 times [2024-11-19 02:24:10,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:24:10,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789121286] [2024-11-19 02:24:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:24:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms