./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:10:56,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:10:56,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 17:10:56,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:10:56,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:10:56,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:10:56,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:10:56,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:10:56,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 17:10:56,606 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 17:10:56,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:10:56,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:10:56,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:10:56,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:10:56,611 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:10:56,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:10:56,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:10:56,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:10:56,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:10:56,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:10:56,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:10:56,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:10:56,614 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:10:56,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:10:56,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:10:56,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 17:10:56,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:10:56,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:10:56,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:10:56,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:10:56,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:10:56,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:10:56,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:10:56,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:10:56,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:10:56,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:10:56,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:10:56,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e [2024-11-22 17:10:56,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:10:56,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:10:56,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:10:56,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:10:56,923 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:10:56,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2024-11-22 17:10:58,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:10:58,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:10:58,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2024-11-22 17:10:58,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e042bb029/632fca8a9c8246a9857881252823773d/FLAG22bc54d37 [2024-11-22 17:10:58,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e042bb029/632fca8a9c8246a9857881252823773d [2024-11-22 17:10:58,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:10:58,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:10:58,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:10:58,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:10:58,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:10:58,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:10:58" (1/1) ... [2024-11-22 17:10:58,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad44610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:58, skipping insertion in model container [2024-11-22 17:10:58,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:10:58" (1/1) ... [2024-11-22 17:10:58,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:10:59,149 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/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2024-11-22 17:10:59,277 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/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2024-11-22 17:10:59,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:10:59,306 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:10:59,353 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/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2024-11-22 17:10:59,424 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/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2024-11-22 17:10:59,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:10:59,472 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:10:59,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59 WrapperNode [2024-11-22 17:10:59,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:10:59,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:10:59,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:10:59,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:10:59,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,607 INFO L138 Inliner]: procedures = 208, calls = 227, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1302 [2024-11-22 17:10:59,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:10:59,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:10:59,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:10:59,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:10:59,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,760 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-22 17:10:59,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:10:59,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:10:59,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:10:59,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:10:59,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (1/1) ... [2024-11-22 17:10:59,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:10:59,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:10:59,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:10:59,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:10:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 17:10:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 17:10:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 17:10:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 17:10:59,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 17:10:59,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 17:10:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 17:10:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 17:10:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 17:10:59,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 17:10:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 17:10:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 17:10:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 17:10:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 17:10:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:10:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 17:10:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 17:10:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 17:10:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 17:10:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 17:10:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 17:10:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:10:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:11:00,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:11:00,171 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:11:01,546 INFO L? ?]: Removed 302 outVars from TransFormulas that were not future-live. [2024-11-22 17:11:01,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:11:01,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:11:01,575 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-22 17:11:01,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:11:01 BoogieIcfgContainer [2024-11-22 17:11:01,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:11:01,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:11:01,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:11:01,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:11:01,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:10:58" (1/3) ... [2024-11-22 17:11:01,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522385d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:11:01, skipping insertion in model container [2024-11-22 17:11:01,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:10:59" (2/3) ... [2024-11-22 17:11:01,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522385d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:11:01, skipping insertion in model container [2024-11-22 17:11:01,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:11:01" (3/3) ... [2024-11-22 17:11:01,585 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-1.i [2024-11-22 17:11:01,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:11:01,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 17:11:01,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:11:01,688 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;@252ac1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:11:01,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 17:11:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 368 states have (on average 1.622282608695652) internal successors, (597), 375 states have internal predecessors, (597), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 17:11:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 17:11:01,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:01,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:01,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:01,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1749664919, now seen corresponding path program 1 times [2024-11-22 17:11:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388619617] [2024-11-22 17:11:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:11:01,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388619617] [2024-11-22 17:11:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388619617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:01,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:01,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:11:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73459252] [2024-11-22 17:11:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:01,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 17:11:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 17:11:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 17:11:01,912 INFO L87 Difference]: Start difference. First operand has 381 states, 368 states have (on average 1.622282608695652) internal successors, (597), 375 states have internal predecessors, (597), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:01,991 INFO L93 Difference]: Finished difference Result 760 states and 1229 transitions. [2024-11-22 17:11:01,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 17:11:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 17:11:01,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:02,011 INFO L225 Difference]: With dead ends: 760 [2024-11-22 17:11:02,012 INFO L226 Difference]: Without dead ends: 377 [2024-11-22 17:11:02,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 17:11:02,023 INFO L432 NwaCegarLoop]: 553 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, 553 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:02,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 17:11:02,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-22 17:11:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-11-22 17:11:02,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.4602739726027398) internal successors, (533), 371 states have internal predecessors, (533), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 17:11:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 549 transitions. [2024-11-22 17:11:02,093 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 549 transitions. Word has length 9 [2024-11-22 17:11:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:02,095 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 549 transitions. [2024-11-22 17:11:02,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 549 transitions. [2024-11-22 17:11:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 17:11:02,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:02,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:02,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:11:02,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:02,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2144728515, now seen corresponding path program 1 times [2024-11-22 17:11:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:02,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197208397] [2024-11-22 17:11:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:11:02,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:02,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197208397] [2024-11-22 17:11:02,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197208397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:02,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:02,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:11:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355689515] [2024-11-22 17:11:02,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:02,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:11:02,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:11:02,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:11:02,564 INFO L87 Difference]: Start difference. First operand 377 states and 549 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:02,773 INFO L93 Difference]: Finished difference Result 917 states and 1346 transitions. [2024-11-22 17:11:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 17:11:02,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-22 17:11:02,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:02,782 INFO L225 Difference]: With dead ends: 917 [2024-11-22 17:11:02,783 INFO L226 Difference]: Without dead ends: 741 [2024-11-22 17:11:02,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:11:02,785 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 518 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:02,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1669 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:11:02,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-22 17:11:02,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 379. [2024-11-22 17:11:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 367 states have (on average 1.457765667574932) internal successors, (535), 373 states have internal predecessors, (535), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 17:11:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 551 transitions. [2024-11-22 17:11:02,818 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 551 transitions. Word has length 64 [2024-11-22 17:11:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:02,819 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 551 transitions. [2024-11-22 17:11:02,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 551 transitions. [2024-11-22 17:11:02,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 17:11:02,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:02,825 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:02,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:11:02,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:02,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash 799714340, now seen corresponding path program 1 times [2024-11-22 17:11:02,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:02,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734630076] [2024-11-22 17:11:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:02,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:11:03,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734630076] [2024-11-22 17:11:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734630076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:03,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:11:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051262250] [2024-11-22 17:11:03,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:03,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:11:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:03,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:11:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:11:03,289 INFO L87 Difference]: Start difference. First operand 379 states and 551 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:03,384 INFO L93 Difference]: Finished difference Result 712 states and 1032 transitions. [2024-11-22 17:11:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:11:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-22 17:11:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:03,387 INFO L225 Difference]: With dead ends: 712 [2024-11-22 17:11:03,387 INFO L226 Difference]: Without dead ends: 337 [2024-11-22 17:11:03,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:11:03,391 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 30 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:03,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1322 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:11:03,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-22 17:11:03,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-22 17:11:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 325 states have (on average 1.4092307692307693) internal successors, (458), 331 states have internal predecessors, (458), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 17:11:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 474 transitions. [2024-11-22 17:11:03,425 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 474 transitions. Word has length 140 [2024-11-22 17:11:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:03,425 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 474 transitions. [2024-11-22 17:11:03,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 474 transitions. [2024-11-22 17:11:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 17:11:03,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:03,429 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:03,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:11:03,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:03,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1221731408, now seen corresponding path program 1 times [2024-11-22 17:11:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:03,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015203366] [2024-11-22 17:11:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:11:03,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:03,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015203366] [2024-11-22 17:11:03,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015203366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:03,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:03,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:11:03,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259261863] [2024-11-22 17:11:03,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:03,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:11:03,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:11:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:11:03,610 INFO L87 Difference]: Start difference. First operand 337 states and 474 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:03,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:03,680 INFO L93 Difference]: Finished difference Result 905 states and 1288 transitions. [2024-11-22 17:11:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:11:03,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-22 17:11:03,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:03,686 INFO L225 Difference]: With dead ends: 905 [2024-11-22 17:11:03,686 INFO L226 Difference]: Without dead ends: 572 [2024-11-22 17:11:03,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:11:03,690 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 271 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:03,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:11:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-22 17:11:03,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2024-11-22 17:11:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 553 states have (on average 1.426763110307414) internal successors, (789), 564 states have internal predecessors, (789), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 17:11:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 815 transitions. [2024-11-22 17:11:03,712 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 815 transitions. Word has length 140 [2024-11-22 17:11:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:03,713 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 815 transitions. [2024-11-22 17:11:03,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:11:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 815 transitions. [2024-11-22 17:11:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 17:11:03,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:03,716 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:03,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:11:03,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:03,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash -572234936, now seen corresponding path program 1 times [2024-11-22 17:11:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76797793] [2024-11-22 17:11:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 17:11:04,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76797793] [2024-11-22 17:11:04,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76797793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:04,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:04,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:11:04,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162679430] [2024-11-22 17:11:04,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:04,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:11:04,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:04,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:11:04,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:11:04,062 INFO L87 Difference]: Start difference. First operand 570 states and 815 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:04,148 INFO L93 Difference]: Finished difference Result 807 states and 1165 transitions. [2024-11-22 17:11:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:11:04,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-22 17:11:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:04,152 INFO L225 Difference]: With dead ends: 807 [2024-11-22 17:11:04,152 INFO L226 Difference]: Without dead ends: 486 [2024-11-22 17:11:04,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:11:04,153 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 30 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:04,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1073 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:11:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-22 17:11:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-22 17:11:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 480 states have internal predecessors, (635), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 17:11:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 661 transitions. [2024-11-22 17:11:04,166 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 661 transitions. Word has length 155 [2024-11-22 17:11:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:04,167 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 661 transitions. [2024-11-22 17:11:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 661 transitions. [2024-11-22 17:11:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 17:11:04,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:04,169 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:04,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:11:04,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:04,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1743749060, now seen corresponding path program 1 times [2024-11-22 17:11:04,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:04,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493711902] [2024-11-22 17:11:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:04,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:04,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:04,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493711902] [2024-11-22 17:11:04,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493711902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:04,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:04,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:11:04,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23913533] [2024-11-22 17:11:04,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:04,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 17:11:04,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 17:11:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:11:04,471 INFO L87 Difference]: Start difference. First operand 486 states and 661 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:04,790 INFO L93 Difference]: Finished difference Result 960 states and 1306 transitions. [2024-11-22 17:11:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:11:04,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-22 17:11:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:04,795 INFO L225 Difference]: With dead ends: 960 [2024-11-22 17:11:04,796 INFO L226 Difference]: Without dead ends: 565 [2024-11-22 17:11:04,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:11:04,798 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 1098 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:04,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 951 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:11:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-22 17:11:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 382. [2024-11-22 17:11:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 370 states have (on average 1.3432432432432433) internal successors, (497), 376 states have internal predecessors, (497), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 17:11:04,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 513 transitions. [2024-11-22 17:11:04,817 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 513 transitions. Word has length 155 [2024-11-22 17:11:04,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:04,818 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 513 transitions. [2024-11-22 17:11:04,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:04,818 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 513 transitions. [2024-11-22 17:11:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 17:11:04,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:04,820 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:11:04,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:11:04,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:04,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1312150256, now seen corresponding path program 1 times [2024-11-22 17:11:04,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:04,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878398463] [2024-11-22 17:11:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:05,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878398463] [2024-11-22 17:11:05,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878398463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:11:05,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335848776] [2024-11-22 17:11:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:05,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:11:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:11:05,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:11:05,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:11:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:06,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:11:06,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:11:06,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 17:11:06,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 17:11:06,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-22 17:11:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:06,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:11:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:06,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335848776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:11:06,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:11:06,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-22 17:11:06,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176151163] [2024-11-22 17:11:06,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:11:06,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 17:11:06,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:06,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 17:11:06,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:11:06,676 INFO L87 Difference]: Start difference. First operand 382 states and 513 transitions. Second operand has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 17:11:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:06,961 INFO L93 Difference]: Finished difference Result 1265 states and 1709 transitions. [2024-11-22 17:11:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 17:11:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 165 [2024-11-22 17:11:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:06,967 INFO L225 Difference]: With dead ends: 1265 [2024-11-22 17:11:06,968 INFO L226 Difference]: Without dead ends: 1131 [2024-11-22 17:11:06,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-22 17:11:06,970 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1760 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:06,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 2246 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:11:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2024-11-22 17:11:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 729. [2024-11-22 17:11:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 713 states have (on average 1.338008415147265) internal successors, (954), 719 states have internal predecessors, (954), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-22 17:11:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 976 transitions. [2024-11-22 17:11:07,007 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 976 transitions. Word has length 165 [2024-11-22 17:11:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:07,008 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 976 transitions. [2024-11-22 17:11:07,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 17:11:07,008 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 976 transitions. [2024-11-22 17:11:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-22 17:11:07,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:07,013 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-22 17:11:07,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 17:11:07,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:11:07,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:07,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:07,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1280903433, now seen corresponding path program 1 times [2024-11-22 17:11:07,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:07,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690254910] [2024-11-22 17:11:07,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690254910] [2024-11-22 17:11:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690254910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:11:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082121148] [2024-11-22 17:11:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:11,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:11:11,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:11:11,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:11:11,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:11:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:12,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 17:11:12,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:11:12,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 17:11:12,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 17:11:12,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 17:11:12,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 17:11:12,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 17:11:12,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-22 17:11:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:12,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:11:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:11:13,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082121148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:11:13,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:11:13,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2024-11-22 17:11:13,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675644734] [2024-11-22 17:11:13,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:11:13,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 17:11:13,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:13,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 17:11:13,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2024-11-22 17:11:13,389 INFO L87 Difference]: Start difference. First operand 729 states and 976 transitions. Second operand has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 17:11:14,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:14,012 INFO L93 Difference]: Finished difference Result 2510 states and 3398 transitions. [2024-11-22 17:11:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 17:11:14,013 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 393 [2024-11-22 17:11:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:14,025 INFO L225 Difference]: With dead ends: 2510 [2024-11-22 17:11:14,025 INFO L226 Difference]: Without dead ends: 2376 [2024-11-22 17:11:14,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 778 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=426, Unknown=0, NotChecked=0, Total=650 [2024-11-22 17:11:14,029 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 4446 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:14,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4483 Valid, 4923 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:11:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2024-11-22 17:11:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1593. [2024-11-22 17:11:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1571 states have (on average 1.336728198599618) internal successors, (2100), 1577 states have internal predecessors, (2100), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 17:11:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2134 transitions. [2024-11-22 17:11:14,091 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2134 transitions. Word has length 393 [2024-11-22 17:11:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:14,092 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2134 transitions. [2024-11-22 17:11:14,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 17:11:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2134 transitions. [2024-11-22 17:11:14,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-22 17:11:14,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:14,111 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-22 17:11:14,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 17:11:14,315 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,SelfDestructingSolverStorable7 [2024-11-22 17:11:14,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:14,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1645223803, now seen corresponding path program 2 times [2024-11-22 17:11:14,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:14,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812145400] [2024-11-22 17:11:14,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:11:14,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:14,660 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:11:14,664 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:11:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-22 17:11:14,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:14,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812145400] [2024-11-22 17:11:15,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812145400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:15,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:15,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:11:15,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196639960] [2024-11-22 17:11:15,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:15,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:11:15,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:15,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:11:15,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:11:15,002 INFO L87 Difference]: Start difference. First operand 1593 states and 2134 transitions. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:15,383 INFO L93 Difference]: Finished difference Result 1737 states and 2329 transitions. [2024-11-22 17:11:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:11:15,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 849 [2024-11-22 17:11:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:15,391 INFO L225 Difference]: With dead ends: 1737 [2024-11-22 17:11:15,391 INFO L226 Difference]: Without dead ends: 1604 [2024-11-22 17:11:15,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 17:11:15,393 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 21 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:15,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1563 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:11:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-22 17:11:15,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1597. [2024-11-22 17:11:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1575 states have (on average 1.3358730158730159) internal successors, (2104), 1581 states have internal predecessors, (2104), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 17:11:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2138 transitions. [2024-11-22 17:11:15,442 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2138 transitions. Word has length 849 [2024-11-22 17:11:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:15,443 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2138 transitions. [2024-11-22 17:11:15,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2138 transitions. [2024-11-22 17:11:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-22 17:11:15,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:15,465 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-22 17:11:15,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:11:15,465 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:15,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1388507960, now seen corresponding path program 1 times [2024-11-22 17:11:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19702620] [2024-11-22 17:11:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-22 17:11:18,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:18,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19702620] [2024-11-22 17:11:18,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19702620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:18,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:18,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 17:11:18,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687151202] [2024-11-22 17:11:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:18,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 17:11:18,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 17:11:18,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 17:11:18,287 INFO L87 Difference]: Start difference. First operand 1597 states and 2138 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:18,710 INFO L93 Difference]: Finished difference Result 1749 states and 2343 transitions. [2024-11-22 17:11:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:11:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 850 [2024-11-22 17:11:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:18,718 INFO L225 Difference]: With dead ends: 1749 [2024-11-22 17:11:18,719 INFO L226 Difference]: Without dead ends: 1612 [2024-11-22 17:11:18,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:11:18,720 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 24 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:18,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2148 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 17:11:18,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-22 17:11:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1601. [2024-11-22 17:11:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1579 states have (on average 1.3356554781507284) internal successors, (2109), 1585 states have internal predecessors, (2109), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 17:11:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2143 transitions. [2024-11-22 17:11:18,775 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2143 transitions. Word has length 850 [2024-11-22 17:11:18,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:18,776 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2143 transitions. [2024-11-22 17:11:18,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2143 transitions. [2024-11-22 17:11:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-22 17:11:18,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:18,784 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-22 17:11:18,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:11:18,785 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:18,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2118969007, now seen corresponding path program 1 times [2024-11-22 17:11:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:18,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031204971] [2024-11-22 17:11:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:18,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-22 17:11:22,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:22,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031204971] [2024-11-22 17:11:22,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031204971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:22,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:22,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:11:22,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424103187] [2024-11-22 17:11:22,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:22,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:11:22,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:11:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:11:22,082 INFO L87 Difference]: Start difference. First operand 1601 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:22,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:22,600 INFO L93 Difference]: Finished difference Result 1753 states and 2350 transitions. [2024-11-22 17:11:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:11:22,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-22 17:11:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:22,608 INFO L225 Difference]: With dead ends: 1753 [2024-11-22 17:11:22,609 INFO L226 Difference]: Without dead ends: 1612 [2024-11-22 17:11:22,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 17:11:22,610 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 32 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:22,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2531 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 17:11:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-22 17:11:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1609. [2024-11-22 17:11:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1587 states have (on average 1.3352236925015752) internal successors, (2119), 1593 states have internal predecessors, (2119), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 17:11:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2153 transitions. [2024-11-22 17:11:22,660 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2153 transitions. Word has length 851 [2024-11-22 17:11:22,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:22,661 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2153 transitions. [2024-11-22 17:11:22,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2153 transitions. [2024-11-22 17:11:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-22 17:11:22,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:22,669 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-22 17:11:22,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:11:22,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:22,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1894244950, now seen corresponding path program 1 times [2024-11-22 17:11:22,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:22,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268186396] [2024-11-22 17:11:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:22,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:11:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:11:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-22 17:11:25,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:11:25,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268186396] [2024-11-22 17:11:25,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268186396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:11:25,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:11:25,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:11:25,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498269123] [2024-11-22 17:11:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:11:25,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:11:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:11:25,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:11:25,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:11:25,166 INFO L87 Difference]: Start difference. First operand 1609 states and 2153 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:25,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:11:25,439 INFO L93 Difference]: Finished difference Result 1767 states and 2364 transitions. [2024-11-22 17:11:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:11:25,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-22 17:11:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:11:25,447 INFO L225 Difference]: With dead ends: 1767 [2024-11-22 17:11:25,448 INFO L226 Difference]: Without dead ends: 1618 [2024-11-22 17:11:25,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:11:25,449 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 16 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:11:25,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1307 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:11:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-11-22 17:11:25,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1612. [2024-11-22 17:11:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1590 states have (on average 1.3345911949685534) internal successors, (2122), 1596 states have internal predecessors, (2122), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 17:11:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2156 transitions. [2024-11-22 17:11:25,502 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2156 transitions. Word has length 851 [2024-11-22 17:11:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:11:25,503 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2156 transitions. [2024-11-22 17:11:25,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 17:11:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2156 transitions. [2024-11-22 17:11:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-22 17:11:25,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:11:25,511 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-22 17:11:25,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:11:25,511 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 17:11:25,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:11:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2004413445, now seen corresponding path program 1 times [2024-11-22 17:11:25,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:11:25,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585229229] [2024-11-22 17:11:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:11:25,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms