./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5a17c5e6b377f57a67eda09046c4807c6b84e7806fd109e4ef14e9498a7cb447 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:41:01,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:41:01,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:41:01,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:41:01,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:41:01,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:41:01,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:41:01,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:41:01,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:41:01,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:41:01,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:41:01,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:41:01,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:41:01,600 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:41:01,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:41:01,600 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 5a17c5e6b377f57a67eda09046c4807c6b84e7806fd109e4ef14e9498a7cb447 [2025-02-05 16:41:01,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:41:01,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:41:01,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:41:01,839 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:41:01,839 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:41:01,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2025-02-05 16:41:02,893 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/066d7b07c/7531fec13714427ebddf07cfa90c1ef9/FLAGf7cf7c6d5 [2025-02-05 16:41:03,296 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:41:03,297 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2025-02-05 16:41:03,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/066d7b07c/7531fec13714427ebddf07cfa90c1ef9/FLAGf7cf7c6d5 [2025-02-05 16:41:03,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/066d7b07c/7531fec13714427ebddf07cfa90c1ef9 [2025-02-05 16:41:03,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:41:03,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:41:03,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:41:03,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:41:03,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:41:03,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:41:03" (1/1) ... [2025-02-05 16:41:03,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3049b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:03, skipping insertion in model container [2025-02-05 16:41:03,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:41:03" (1/1) ... [2025-02-05 16:41:03,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:41:03,797 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2025-02-05 16:41:03,834 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2025-02-05 16:41:03,842 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2025-02-05 16:41:03,849 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2025-02-05 16:41:03,857 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2025-02-05 16:41:03,865 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2025-02-05 16:41:03,873 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2025-02-05 16:41:03,885 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2025-02-05 16:41:03,898 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2025-02-05 16:41:03,907 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2025-02-05 16:41:03,912 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2025-02-05 16:41:03,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:41:03,939 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:41:03,996 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2025-02-05 16:41:04,012 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2025-02-05 16:41:04,025 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2025-02-05 16:41:04,031 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2025-02-05 16:41:04,037 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2025-02-05 16:41:04,042 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2025-02-05 16:41:04,048 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2025-02-05 16:41:04,053 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2025-02-05 16:41:04,062 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2025-02-05 16:41:04,070 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2025-02-05 16:41:04,078 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2025-02-05 16:41:04,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:41:04,106 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:41:04,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04 WrapperNode [2025-02-05 16:41:04,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:41:04,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:41:04,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:41:04,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:41:04,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,195 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2754 [2025-02-05 16:41:04,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:41:04,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:41:04,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:41:04,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:41:04,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,247 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 16:41:04,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,276 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:41:04,308 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:41:04,308 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:41:04,308 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:41:04,309 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (1/1) ... [2025-02-05 16:41:04,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:41:04,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:41:04,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:41:04,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:41:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:41:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:41:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:41:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:41:04,484 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:41:04,485 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:41:05,678 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1953: havoc main_~__tmp_10~0#1, main_~assert__arg~9#1;havoc main_~check__tmp~13#1;havoc main_~node4__m4~10#1;havoc main_~node3__m3~8#1;havoc main_~node2__m2~7#1;havoc main_~node1__m1~7#1;havoc main_~__tmp_9~0#1, main_~assert__arg~8#1;havoc main_~check__tmp~12#1; [2025-02-05 16:41:05,678 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3341: havoc main_~node3____CPAchecker_TMP_0~3#1;havoc main_~node3__m3~15#1; [2025-02-05 16:41:05,678 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4267: havoc main_~node2__m2~18#1; [2025-02-05 16:41:05,678 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3739: havoc main_~__tmp_24~0#1, main_~assert__arg~23#1;havoc main_~check__tmp~27#1;havoc main_~node4__m4~20#1;havoc main_~node3__m3~17#1;havoc main_~node2__m2~15#1;havoc main_~node1__m1~14#1;havoc main_~__tmp_23~0#1, main_~assert__arg~22#1;havoc main_~check__tmp~26#1; [2025-02-05 16:41:05,678 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2486: havoc main_~__tmp_14~0#1, main_~assert__arg~13#1;havoc main_~check__tmp~17#1;havoc main_~node4__m4~13#1;havoc main_~node3__m3~11#1;havoc main_~node2__m2~10#1;havoc main_~node1__m1~9#1;havoc main_~__tmp_13~0#1, main_~assert__arg~12#1;havoc main_~check__tmp~16#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L240: havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4403: havoc main_~node3____CPAchecker_TMP_0~4#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1298: havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node3__m3~5#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1697: havoc main_~__tmp_8~0#1, main_~assert__arg~7#1;havoc main_~check__tmp~11#1;havoc main_~node4__m4~8#1;havoc main_~node3__m3~7#1;havoc main_~node2__m2~6#1;havoc main_~node1__m1~6#1;havoc main_~__tmp_7~0#1, main_~assert__arg~6#1;havoc main_~check__tmp~10#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L381: havoc main_~check__tmp~1#1;havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3358: havoc main_~node4____CPAchecker_TMP_0~6#1;havoc main_~node4__m4~18#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L189: havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1180: havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~7#1;havoc main_~node4__m4~5#1;havoc main_~node3__m3~4#1;havoc main_~node2__m2~4#1;havoc main_~node1__m1~4#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~6#1; [2025-02-05 16:41:05,679 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2305: havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node2__m2~9#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1315: havoc main_~node4____CPAchecker_TMP_0~2#1;havoc main_~node4__m4~6#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3231: havoc main_~__tmp_20~0#1, main_~assert__arg~19#1;havoc main_~check__tmp~23#1;havoc main_~node4__m4~17#1;havoc main_~node3__m3~14#1;havoc main_~node2__m2~13#1;havoc main_~node1__m1~12#1;havoc main_~__tmp_19~0#1, main_~assert__arg~18#1;havoc main_~check__tmp~22#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1450: havoc main_~check__tmp~9#1;havoc main_~node4__m4~7#1;havoc main_~node3__m3~6#1;havoc main_~node2__m2~5#1;havoc main_~node1__m1~5#1;havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~8#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3499: havoc main_~__tmp_22~0#1, main_~assert__arg~21#1;havoc main_~check__tmp~25#1;havoc main_~node4__m4~19#1;havoc main_~node3__m3~16#1;havoc main_~node2__m2~14#1;havoc main_~node1__m1~13#1;havoc main_~__tmp_21~0#1, main_~assert__arg~20#1;havoc main_~check__tmp~24#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4226: havoc main_~node1__m1~17#1;havoc main_~__tmp_28~0#1, main_~assert__arg~27#1;havoc main_~check__tmp~31#1;havoc main_~node4__m4~23#1;havoc main_~node3__m3~19#1;havoc main_~node2__m2~17#1;havoc main_~node1__m1~16#1;havoc main_~__tmp_27~0#1, main_~assert__arg~26#1;havoc main_~check__tmp~30#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4431: havoc main_~node2____CPAchecker_TMP_0~2#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4299: havoc main_~node3__m3~20#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L798: havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node4__m4~3#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L206: havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__m2~0#1; [2025-02-05 16:41:05,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L933: havoc main_~check__tmp~5#1;havoc main_~node4__m4~4#1;havoc main_~node3__m3~3#1;havoc main_~node2__m2~3#1;havoc main_~node1__m1~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~4#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2322: havoc main_~node3____CPAchecker_TMP_0~2#1;havoc main_~node3__m3~10#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2851: havoc main_~node4____CPAchecker_TMP_0~5#1;havoc main_~node4__m4~15#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L672: havoc main_~check__tmp~3#1;havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~2#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2192: havoc main_~__tmp_12~0#1, main_~assert__arg~11#1;havoc main_~check__tmp~15#1;havoc main_~node4__m4~11#1;havoc main_~node3__m3~9#1;havoc main_~node2__m2~8#1;havoc main_~node1__m1~8#1;havoc main_~__tmp_11~0#1, main_~assert__arg~10#1;havoc main_~check__tmp~14#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3846: havoc main_~node4____CPAchecker_TMP_0~7#1;havoc main_~node4__m4~21#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4375: havoc main_~node4____CPAchecker_TMP_0~8#1;havoc main_~node4__m4~24#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2992: havoc main_~__tmp_18~0#1, main_~assert__arg~17#1;havoc main_~check__tmp~21#1;havoc main_~node4__m4~16#1;havoc main_~node3__m3~13#1;havoc main_~node2__m2~12#1;havoc main_~node1__m1~11#1;havoc main_~__tmp_17~0#1, main_~assert__arg~16#1;havoc main_~check__tmp~20#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L223: havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__m3~0#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3990: havoc main_~__tmp_26~0#1, main_~assert__arg~25#1;havoc main_~check__tmp~29#1;havoc main_~node4__m4~22#1;havoc main_~node3__m3~18#1;havoc main_~node2__m2~16#1;havoc main_~node1__m1~15#1;havoc main_~__tmp_25~0#1, main_~assert__arg~24#1;havoc main_~check__tmp~28#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2339: havoc main_~node4____CPAchecker_TMP_0~4#1;havoc main_~node4__m4~12#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2736: havoc main_~__tmp_16~0#1, main_~assert__arg~15#1;havoc main_~check__tmp~19#1;havoc main_~node4__m4~14#1;havoc main_~node3__m3~12#1;havoc main_~node2__m2~11#1;havoc main_~node1__m1~10#1;havoc main_~__tmp_15~0#1, main_~assert__arg~14#1;havoc main_~check__tmp~18#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1812: havoc main_~node4____CPAchecker_TMP_0~3#1;havoc main_~node4__m4~9#1; [2025-02-05 16:41:05,681 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4460: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-02-05 16:41:05,762 INFO L? ?]: Removed 475 outVars from TransFormulas that were not future-live. [2025-02-05 16:41:05,762 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:41:05,775 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:41:05,775 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:41:05,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:41:05 BoogieIcfgContainer [2025-02-05 16:41:05,776 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:41:05,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:41:05,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:41:05,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:41:05,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:41:03" (1/3) ... [2025-02-05 16:41:05,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6c3eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:41:05, skipping insertion in model container [2025-02-05 16:41:05,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:41:04" (2/3) ... [2025-02-05 16:41:05,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6c3eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:41:05, skipping insertion in model container [2025-02-05 16:41:05,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:41:05" (3/3) ... [2025-02-05 16:41:05,782 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2025-02-05 16:41:05,791 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:41:05,793 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c that has 1 procedures, 537 locations, 1 initial locations, 0 loop locations, and 11 error locations. [2025-02-05 16:41:05,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:41:05,838 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;@357f076d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:41:05,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-02-05 16:41:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 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) [2025-02-05 16:41:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-05 16:41:05,849 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:05,850 INFO L218 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] [2025-02-05 16:41:05,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:05,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1700733976, now seen corresponding path program 1 times [2025-02-05 16:41:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:05,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445304414] [2025-02-05 16:41:05,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:05,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-05 16:41:05,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-05 16:41:05,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:05,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:06,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:06,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445304414] [2025-02-05 16:41:06,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445304414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:06,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:06,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:41:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874899163] [2025-02-05 16:41:06,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:06,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:41:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:06,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:41:06,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:41:06,288 INFO L87 Difference]: Start difference. First operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:06,633 INFO L93 Difference]: Finished difference Result 676 states and 1176 transitions. [2025-02-05 16:41:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:41:06,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2025-02-05 16:41:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:06,643 INFO L225 Difference]: With dead ends: 676 [2025-02-05 16:41:06,643 INFO L226 Difference]: Without dead ends: 388 [2025-02-05 16:41:06,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:41:06,649 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 1949 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:06,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 438 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2025-02-05 16:41:06,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2025-02-05 16:41:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 377 states have (on average 1.297082228116711) internal successors, (489), 387 states have internal predecessors, (489), 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) [2025-02-05 16:41:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 489 transitions. [2025-02-05 16:41:06,712 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 489 transitions. Word has length 59 [2025-02-05 16:41:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:06,712 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 489 transitions. [2025-02-05 16:41:06,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 489 transitions. [2025-02-05 16:41:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-05 16:41:06,717 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:06,718 INFO L218 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] [2025-02-05 16:41:06,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 16:41:06,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:06,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:06,719 INFO L85 PathProgramCache]: Analyzing trace with hash -281967215, now seen corresponding path program 1 times [2025-02-05 16:41:06,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:06,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646210361] [2025-02-05 16:41:06,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:06,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:06,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-05 16:41:06,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-05 16:41:06,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:06,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:06,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:06,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646210361] [2025-02-05 16:41:06,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646210361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:06,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:06,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:41:06,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870382415] [2025-02-05 16:41:06,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:06,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:41:06,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:06,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:41:06,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:41:06,913 INFO L87 Difference]: Start difference. First operand 388 states and 489 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:07,151 INFO L93 Difference]: Finished difference Result 554 states and 709 transitions. [2025-02-05 16:41:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:41:07,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2025-02-05 16:41:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:07,153 INFO L225 Difference]: With dead ends: 554 [2025-02-05 16:41:07,155 INFO L226 Difference]: Without dead ends: 356 [2025-02-05 16:41:07,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:41:07,156 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1281 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:07,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 247 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:07,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-05 16:41:07,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2025-02-05 16:41:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.3101449275362318) internal successors, (452), 355 states have internal predecessors, (452), 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) [2025-02-05 16:41:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 452 transitions. [2025-02-05 16:41:07,175 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 452 transitions. Word has length 59 [2025-02-05 16:41:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:07,176 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 452 transitions. [2025-02-05 16:41:07,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 452 transitions. [2025-02-05 16:41:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-05 16:41:07,182 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:07,183 INFO L218 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] [2025-02-05 16:41:07,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 16:41:07,183 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:07,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1760429044, now seen corresponding path program 1 times [2025-02-05 16:41:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:07,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717131302] [2025-02-05 16:41:07,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:07,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:07,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-05 16:41:07,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-05 16:41:07,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:07,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717131302] [2025-02-05 16:41:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717131302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:07,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:41:07,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574935652] [2025-02-05 16:41:07,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:07,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:41:07,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:07,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:41:07,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:41:07,367 INFO L87 Difference]: Start difference. First operand 356 states and 452 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:07,562 INFO L93 Difference]: Finished difference Result 506 states and 651 transitions. [2025-02-05 16:41:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:41:07,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2025-02-05 16:41:07,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:07,563 INFO L225 Difference]: With dead ends: 506 [2025-02-05 16:41:07,563 INFO L226 Difference]: Without dead ends: 312 [2025-02-05 16:41:07,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:41:07,564 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 1159 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:07,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 219 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-02-05 16:41:07,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2025-02-05 16:41:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 311 states have internal predecessors, (399), 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) [2025-02-05 16:41:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 399 transitions. [2025-02-05 16:41:07,572 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 399 transitions. Word has length 59 [2025-02-05 16:41:07,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:07,572 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 399 transitions. [2025-02-05 16:41:07,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:41:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 399 transitions. [2025-02-05 16:41:07,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-05 16:41:07,573 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:07,573 INFO L218 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] [2025-02-05 16:41:07,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:41:07,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:07,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1518359833, now seen corresponding path program 1 times [2025-02-05 16:41:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:07,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032983219] [2025-02-05 16:41:07,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:07,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:07,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-05 16:41:07,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-05 16:41:07,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:07,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:07,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032983219] [2025-02-05 16:41:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032983219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:41:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2699702] [2025-02-05 16:41:07,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:07,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:41:07,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:07,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:41:07,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:41:07,681 INFO L87 Difference]: Start difference. First operand 312 states and 399 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-05 16:41:07,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:07,806 INFO L93 Difference]: Finished difference Result 410 states and 519 transitions. [2025-02-05 16:41:07,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:41:07,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2025-02-05 16:41:07,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:07,808 INFO L225 Difference]: With dead ends: 410 [2025-02-05 16:41:07,808 INFO L226 Difference]: Without dead ends: 245 [2025-02-05 16:41:07,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:41:07,811 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 865 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:07,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 195 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:07,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-02-05 16:41:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-02-05 16:41:07,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3205128205128205) internal successors, (309), 244 states have internal predecessors, (309), 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) [2025-02-05 16:41:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 309 transitions. [2025-02-05 16:41:07,822 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 309 transitions. Word has length 60 [2025-02-05 16:41:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:07,822 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 309 transitions. [2025-02-05 16:41:07,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-05 16:41:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 309 transitions. [2025-02-05 16:41:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-05 16:41:07,827 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:07,827 INFO L218 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] [2025-02-05 16:41:07,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:41:07,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:07,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2032795078, now seen corresponding path program 1 times [2025-02-05 16:41:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:07,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533891425] [2025-02-05 16:41:07,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:07,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-05 16:41:07,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-05 16:41:07,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:07,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:08,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:08,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533891425] [2025-02-05 16:41:08,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533891425] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:08,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:08,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 16:41:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259980179] [2025-02-05 16:41:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:08,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 16:41:08,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:08,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 16:41:08,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:41:08,091 INFO L87 Difference]: Start difference. First operand 245 states and 309 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2025-02-05 16:41:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:08,412 INFO L93 Difference]: Finished difference Result 484 states and 611 transitions. [2025-02-05 16:41:08,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 16:41:08,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2025-02-05 16:41:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:08,414 INFO L225 Difference]: With dead ends: 484 [2025-02-05 16:41:08,414 INFO L226 Difference]: Without dead ends: 351 [2025-02-05 16:41:08,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:08,415 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 996 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:08,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 768 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-02-05 16:41:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 245. [2025-02-05 16:41:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3162393162393162) internal successors, (308), 244 states have internal predecessors, (308), 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) [2025-02-05 16:41:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2025-02-05 16:41:08,420 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 61 [2025-02-05 16:41:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:08,421 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2025-02-05 16:41:08,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2025-02-05 16:41:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2025-02-05 16:41:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-05 16:41:08,421 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:08,421 INFO L218 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] [2025-02-05 16:41:08,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 16:41:08,422 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:08,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:08,422 INFO L85 PathProgramCache]: Analyzing trace with hash 594708170, now seen corresponding path program 1 times [2025-02-05 16:41:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:08,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559942035] [2025-02-05 16:41:08,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:08,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:08,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-05 16:41:08,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-05 16:41:08,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:08,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559942035] [2025-02-05 16:41:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559942035] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:08,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:08,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:08,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989801152] [2025-02-05 16:41:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:08,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:08,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:08,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:08,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:08,638 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-02-05 16:41:09,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:09,045 INFO L93 Difference]: Finished difference Result 469 states and 608 transitions. [2025-02-05 16:41:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:09,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2025-02-05 16:41:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:09,049 INFO L225 Difference]: With dead ends: 469 [2025-02-05 16:41:09,049 INFO L226 Difference]: Without dead ends: 381 [2025-02-05 16:41:09,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2025-02-05 16:41:09,051 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 1456 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:09,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1016 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:09,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-02-05 16:41:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 245. [2025-02-05 16:41:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.311965811965812) internal successors, (307), 244 states have internal predecessors, (307), 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) [2025-02-05 16:41:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 307 transitions. [2025-02-05 16:41:09,056 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 307 transitions. Word has length 61 [2025-02-05 16:41:09,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:09,056 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 307 transitions. [2025-02-05 16:41:09,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-02-05 16:41:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 307 transitions. [2025-02-05 16:41:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-05 16:41:09,057 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:09,057 INFO L218 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] [2025-02-05 16:41:09,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 16:41:09,058 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:09,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash 630827982, now seen corresponding path program 1 times [2025-02-05 16:41:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:09,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443237420] [2025-02-05 16:41:09,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:09,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-05 16:41:09,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-05 16:41:09,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:09,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:09,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:09,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443237420] [2025-02-05 16:41:09,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443237420] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:09,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:09,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:09,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796513729] [2025-02-05 16:41:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:09,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:09,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:09,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:09,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:09,324 INFO L87 Difference]: Start difference. First operand 245 states and 307 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-02-05 16:41:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:09,720 INFO L93 Difference]: Finished difference Result 443 states and 574 transitions. [2025-02-05 16:41:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:09,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2025-02-05 16:41:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:09,722 INFO L225 Difference]: With dead ends: 443 [2025-02-05 16:41:09,722 INFO L226 Difference]: Without dead ends: 377 [2025-02-05 16:41:09,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-05 16:41:09,723 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 1340 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:09,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 884 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-02-05 16:41:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 245. [2025-02-05 16:41:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3076923076923077) internal successors, (306), 244 states have internal predecessors, (306), 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) [2025-02-05 16:41:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 306 transitions. [2025-02-05 16:41:09,729 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 306 transitions. Word has length 61 [2025-02-05 16:41:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:09,730 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 306 transitions. [2025-02-05 16:41:09,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-02-05 16:41:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 306 transitions. [2025-02-05 16:41:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:09,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:09,731 INFO L218 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] [2025-02-05 16:41:09,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 16:41:09,732 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:09,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:09,732 INFO L85 PathProgramCache]: Analyzing trace with hash -779431768, now seen corresponding path program 1 times [2025-02-05 16:41:09,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:09,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791247304] [2025-02-05 16:41:09,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:09,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:09,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:09,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:09,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:10,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:10,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:10,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791247304] [2025-02-05 16:41:10,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791247304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:10,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:10,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 16:41:10,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444754237] [2025-02-05 16:41:10,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:10,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 16:41:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:10,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 16:41:10,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-02-05 16:41:10,191 INFO L87 Difference]: Start difference. First operand 245 states and 306 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2025-02-05 16:41:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:10,934 INFO L93 Difference]: Finished difference Result 516 states and 673 transitions. [2025-02-05 16:41:10,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-05 16:41:10,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:10,936 INFO L225 Difference]: With dead ends: 516 [2025-02-05 16:41:10,937 INFO L226 Difference]: Without dead ends: 511 [2025-02-05 16:41:10,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-02-05 16:41:10,938 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 2879 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:10,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 946 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 16:41:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-02-05 16:41:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 249. [2025-02-05 16:41:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 238 states have (on average 1.3025210084033614) internal successors, (310), 248 states have internal predecessors, (310), 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) [2025-02-05 16:41:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 310 transitions. [2025-02-05 16:41:10,950 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 310 transitions. Word has length 63 [2025-02-05 16:41:10,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:10,950 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 310 transitions. [2025-02-05 16:41:10,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2025-02-05 16:41:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 310 transitions. [2025-02-05 16:41:10,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:10,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:10,951 INFO L218 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] [2025-02-05 16:41:10,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 16:41:10,951 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:10,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1840806277, now seen corresponding path program 1 times [2025-02-05 16:41:10,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:10,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414519974] [2025-02-05 16:41:10,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:10,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:10,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:10,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:10,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:11,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:11,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414519974] [2025-02-05 16:41:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414519974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:11,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:11,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:11,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231815887] [2025-02-05 16:41:11,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:11,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:11,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:11,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:11,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:11,182 INFO L87 Difference]: Start difference. First operand 249 states and 310 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:11,563 INFO L93 Difference]: Finished difference Result 425 states and 544 transitions. [2025-02-05 16:41:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:11,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:11,565 INFO L225 Difference]: With dead ends: 425 [2025-02-05 16:41:11,565 INFO L226 Difference]: Without dead ends: 369 [2025-02-05 16:41:11,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:11,566 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1670 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:11,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 783 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:11,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-02-05 16:41:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 249. [2025-02-05 16:41:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 238 states have (on average 1.2983193277310925) internal successors, (309), 248 states have internal predecessors, (309), 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) [2025-02-05 16:41:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 309 transitions. [2025-02-05 16:41:11,571 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 309 transitions. Word has length 63 [2025-02-05 16:41:11,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:11,571 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 309 transitions. [2025-02-05 16:41:11,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:11,571 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 309 transitions. [2025-02-05 16:41:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:11,572 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:11,572 INFO L218 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] [2025-02-05 16:41:11,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 16:41:11,572 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:11,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:11,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1972543275, now seen corresponding path program 1 times [2025-02-05 16:41:11,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:11,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355741985] [2025-02-05 16:41:11,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:11,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:11,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:11,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:11,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:11,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:11,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:11,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355741985] [2025-02-05 16:41:11,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355741985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:11,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:11,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 16:41:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184628035] [2025-02-05 16:41:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:11,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 16:41:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:11,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 16:41:11,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-02-05 16:41:11,998 INFO L87 Difference]: Start difference. First operand 249 states and 309 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2025-02-05 16:41:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:13,034 INFO L93 Difference]: Finished difference Result 634 states and 847 transitions. [2025-02-05 16:41:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-05 16:41:13,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:13,037 INFO L225 Difference]: With dead ends: 634 [2025-02-05 16:41:13,038 INFO L226 Difference]: Without dead ends: 563 [2025-02-05 16:41:13,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-02-05 16:41:13,039 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 2045 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:13,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 1663 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 16:41:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2025-02-05 16:41:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 253. [2025-02-05 16:41:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.2933884297520661) internal successors, (313), 252 states have internal predecessors, (313), 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) [2025-02-05 16:41:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2025-02-05 16:41:13,045 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 63 [2025-02-05 16:41:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:13,045 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2025-02-05 16:41:13,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2025-02-05 16:41:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2025-02-05 16:41:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:13,046 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:13,046 INFO L218 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] [2025-02-05 16:41:13,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 16:41:13,046 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:13,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:13,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1867877623, now seen corresponding path program 1 times [2025-02-05 16:41:13,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:13,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977675734] [2025-02-05 16:41:13,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:13,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:13,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:13,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:13,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:13,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:13,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977675734] [2025-02-05 16:41:13,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977675734] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:13,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:13,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:13,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479068449] [2025-02-05 16:41:13,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:13,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:13,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:13,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:13,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:13,266 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:13,616 INFO L93 Difference]: Finished difference Result 432 states and 550 transitions. [2025-02-05 16:41:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:13,617 INFO L225 Difference]: With dead ends: 432 [2025-02-05 16:41:13,617 INFO L226 Difference]: Without dead ends: 373 [2025-02-05 16:41:13,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:13,618 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1665 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:13,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 783 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-02-05 16:41:13,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 253. [2025-02-05 16:41:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.2892561983471074) internal successors, (312), 252 states have internal predecessors, (312), 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) [2025-02-05 16:41:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2025-02-05 16:41:13,623 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 63 [2025-02-05 16:41:13,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:13,624 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2025-02-05 16:41:13,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:13,625 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2025-02-05 16:41:13,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:13,625 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:13,625 INFO L218 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] [2025-02-05 16:41:13,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 16:41:13,625 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:13,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:13,626 INFO L85 PathProgramCache]: Analyzing trace with hash 895742070, now seen corresponding path program 1 times [2025-02-05 16:41:13,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:13,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107282615] [2025-02-05 16:41:13,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:13,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:13,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:13,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:13,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:13,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:13,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107282615] [2025-02-05 16:41:13,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107282615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:13,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511564121] [2025-02-05 16:41:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:13,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:13,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:13,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:13,770 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:14,151 INFO L93 Difference]: Finished difference Result 483 states and 617 transitions. [2025-02-05 16:41:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:41:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:14,153 INFO L225 Difference]: With dead ends: 483 [2025-02-05 16:41:14,153 INFO L226 Difference]: Without dead ends: 389 [2025-02-05 16:41:14,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:14,154 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 706 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:14,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1001 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-02-05 16:41:14,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 253. [2025-02-05 16:41:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.2851239669421488) internal successors, (311), 252 states have internal predecessors, (311), 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) [2025-02-05 16:41:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 311 transitions. [2025-02-05 16:41:14,185 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 311 transitions. Word has length 63 [2025-02-05 16:41:14,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:14,185 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 311 transitions. [2025-02-05 16:41:14,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 311 transitions. [2025-02-05 16:41:14,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:14,186 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:14,186 INFO L218 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] [2025-02-05 16:41:14,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 16:41:14,186 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:14,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:14,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1696606601, now seen corresponding path program 1 times [2025-02-05 16:41:14,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:14,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858935697] [2025-02-05 16:41:14,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:14,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:14,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:14,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:14,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:14,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:14,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858935697] [2025-02-05 16:41:14,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858935697] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:14,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:14,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73375187] [2025-02-05 16:41:14,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:14,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:14,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:14,366 INFO L87 Difference]: Start difference. First operand 253 states and 311 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:14,776 INFO L93 Difference]: Finished difference Result 398 states and 496 transitions. [2025-02-05 16:41:14,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:14,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:14,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:14,778 INFO L225 Difference]: With dead ends: 398 [2025-02-05 16:41:14,778 INFO L226 Difference]: Without dead ends: 381 [2025-02-05 16:41:14,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2025-02-05 16:41:14,779 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 1317 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:14,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1165 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-02-05 16:41:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 253. [2025-02-05 16:41:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.28099173553719) internal successors, (310), 252 states have internal predecessors, (310), 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) [2025-02-05 16:41:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 310 transitions. [2025-02-05 16:41:14,785 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 310 transitions. Word has length 63 [2025-02-05 16:41:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:14,785 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 310 transitions. [2025-02-05 16:41:14,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 310 transitions. [2025-02-05 16:41:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:41:14,786 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:14,786 INFO L218 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] [2025-02-05 16:41:14,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 16:41:14,786 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:14,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1126356135, now seen corresponding path program 1 times [2025-02-05 16:41:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:14,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552235985] [2025-02-05 16:41:14,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:14,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:14,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:41:14,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:41:14,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:14,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:14,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:14,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552235985] [2025-02-05 16:41:14,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552235985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:14,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:14,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:14,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878445590] [2025-02-05 16:41:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:14,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:14,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:14,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:14,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:14,943 INFO L87 Difference]: Start difference. First operand 253 states and 310 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:15,271 INFO L93 Difference]: Finished difference Result 378 states and 466 transitions. [2025-02-05 16:41:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2025-02-05 16:41:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:15,273 INFO L225 Difference]: With dead ends: 378 [2025-02-05 16:41:15,273 INFO L226 Difference]: Without dead ends: 373 [2025-02-05 16:41:15,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2025-02-05 16:41:15,274 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 768 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:15,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 831 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-02-05 16:41:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 253. [2025-02-05 16:41:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.2768595041322315) internal successors, (309), 252 states have internal predecessors, (309), 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) [2025-02-05 16:41:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 309 transitions. [2025-02-05 16:41:15,278 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 309 transitions. Word has length 63 [2025-02-05 16:41:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:15,278 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 309 transitions. [2025-02-05 16:41:15,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2025-02-05 16:41:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 309 transitions. [2025-02-05 16:41:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:41:15,279 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:15,279 INFO L218 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] [2025-02-05 16:41:15,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 16:41:15,279 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:15,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -596759835, now seen corresponding path program 1 times [2025-02-05 16:41:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893991403] [2025-02-05 16:41:15,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:15,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:41:15,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:41:15,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:15,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:15,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893991403] [2025-02-05 16:41:15,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893991403] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:15,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:15,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621290751] [2025-02-05 16:41:15,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:15,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:15,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:15,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:15,400 INFO L87 Difference]: Start difference. First operand 253 states and 309 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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) [2025-02-05 16:41:15,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:15,776 INFO L93 Difference]: Finished difference Result 378 states and 465 transitions. [2025-02-05 16:41:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:41:15,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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 [2025-02-05 16:41:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:15,778 INFO L225 Difference]: With dead ends: 378 [2025-02-05 16:41:15,778 INFO L226 Difference]: Without dead ends: 373 [2025-02-05 16:41:15,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:15,779 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 1163 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:15,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 828 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-02-05 16:41:15,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 249. [2025-02-05 16:41:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 248 states have internal predecessors, (304), 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) [2025-02-05 16:41:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2025-02-05 16:41:15,784 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 64 [2025-02-05 16:41:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:15,784 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2025-02-05 16:41:15,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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) [2025-02-05 16:41:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2025-02-05 16:41:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:41:15,785 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:15,785 INFO L218 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] [2025-02-05 16:41:15,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 16:41:15,785 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:15,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1054625599, now seen corresponding path program 1 times [2025-02-05 16:41:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:15,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880276274] [2025-02-05 16:41:15,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:15,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:41:15,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:41:15,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:15,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880276274] [2025-02-05 16:41:15,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880276274] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:15,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884783307] [2025-02-05 16:41:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:15,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:15,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:15,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:15,935 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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) [2025-02-05 16:41:16,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:16,312 INFO L93 Difference]: Finished difference Result 448 states and 570 transitions. [2025-02-05 16:41:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:41:16,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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 [2025-02-05 16:41:16,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:16,313 INFO L225 Difference]: With dead ends: 448 [2025-02-05 16:41:16,314 INFO L226 Difference]: Without dead ends: 377 [2025-02-05 16:41:16,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:16,314 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 1419 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:16,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 987 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-02-05 16:41:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 245. [2025-02-05 16:41:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2777777777777777) internal successors, (299), 244 states have internal predecessors, (299), 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) [2025-02-05 16:41:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 299 transitions. [2025-02-05 16:41:16,318 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 299 transitions. Word has length 64 [2025-02-05 16:41:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:16,319 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 299 transitions. [2025-02-05 16:41:16,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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) [2025-02-05 16:41:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 299 transitions. [2025-02-05 16:41:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:16,319 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:16,319 INFO L218 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, 1] [2025-02-05 16:41:16,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 16:41:16,319 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:16,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:16,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2132808463, now seen corresponding path program 1 times [2025-02-05 16:41:16,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:16,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155243072] [2025-02-05 16:41:16,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:16,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:16,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:16,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:16,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:16,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:16,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:16,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155243072] [2025-02-05 16:41:16,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155243072] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:16,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:16,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 16:41:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503518754] [2025-02-05 16:41:16,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:16,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 16:41:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:16,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 16:41:16,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:16,718 INFO L87 Difference]: Start difference. First operand 245 states and 299 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:17,245 INFO L93 Difference]: Finished difference Result 658 states and 849 transitions. [2025-02-05 16:41:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-05 16:41:17,245 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:17,247 INFO L225 Difference]: With dead ends: 658 [2025-02-05 16:41:17,247 INFO L226 Difference]: Without dead ends: 580 [2025-02-05 16:41:17,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:41:17,248 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 1521 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:17,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 3925 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-02-05 16:41:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 221. [2025-02-05 16:41:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 211 states have (on average 1.2748815165876777) internal successors, (269), 220 states have internal predecessors, (269), 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) [2025-02-05 16:41:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 269 transitions. [2025-02-05 16:41:17,253 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 269 transitions. Word has length 65 [2025-02-05 16:41:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:17,253 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 269 transitions. [2025-02-05 16:41:17,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 269 transitions. [2025-02-05 16:41:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:17,253 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:17,254 INFO L218 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, 1] [2025-02-05 16:41:17,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-05 16:41:17,254 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:17,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1862285579, now seen corresponding path program 1 times [2025-02-05 16:41:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:17,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119852881] [2025-02-05 16:41:17,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:17,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:17,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:17,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:17,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:18,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:18,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119852881] [2025-02-05 16:41:18,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119852881] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:18,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:18,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2025-02-05 16:41:18,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581614302] [2025-02-05 16:41:18,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:18,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-05 16:41:18,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:18,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-05 16:41:18,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-02-05 16:41:18,153 INFO L87 Difference]: Start difference. First operand 221 states and 269 transitions. Second operand has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 24 states have internal predecessors, (65), 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) [2025-02-05 16:41:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:20,557 INFO L93 Difference]: Finished difference Result 672 states and 857 transitions. [2025-02-05 16:41:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-05 16:41:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 24 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:20,560 INFO L225 Difference]: With dead ends: 672 [2025-02-05 16:41:20,560 INFO L226 Difference]: Without dead ends: 614 [2025-02-05 16:41:20,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=341, Invalid=1465, Unknown=0, NotChecked=0, Total=1806 [2025-02-05 16:41:20,561 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 1671 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 3086 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:20,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 6851 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3086 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-05 16:41:20,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2025-02-05 16:41:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 232. [2025-02-05 16:41:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 222 states have (on average 1.2747747747747749) internal successors, (283), 231 states have internal predecessors, (283), 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) [2025-02-05 16:41:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 283 transitions. [2025-02-05 16:41:20,566 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 283 transitions. Word has length 65 [2025-02-05 16:41:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:20,567 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 283 transitions. [2025-02-05 16:41:20,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 24 states have internal predecessors, (65), 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) [2025-02-05 16:41:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 283 transitions. [2025-02-05 16:41:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:20,567 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:20,567 INFO L218 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, 1] [2025-02-05 16:41:20,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-05 16:41:20,568 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:20,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -918114264, now seen corresponding path program 1 times [2025-02-05 16:41:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508098116] [2025-02-05 16:41:20,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:20,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:20,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:20,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:20,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:20,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:20,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508098116] [2025-02-05 16:41:20,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508098116] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:20,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:20,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 16:41:20,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350497262] [2025-02-05 16:41:20,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:20,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 16:41:20,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:20,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 16:41:20,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-05 16:41:20,854 INFO L87 Difference]: Start difference. First operand 232 states and 283 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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) [2025-02-05 16:41:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:21,238 INFO L93 Difference]: Finished difference Result 586 states and 748 transitions. [2025-02-05 16:41:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:41:21,238 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:21,241 INFO L225 Difference]: With dead ends: 586 [2025-02-05 16:41:21,241 INFO L226 Difference]: Without dead ends: 482 [2025-02-05 16:41:21,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2025-02-05 16:41:21,242 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 1220 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:21,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 1891 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2025-02-05 16:41:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 182. [2025-02-05 16:41:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 181 states have internal predecessors, (222), 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) [2025-02-05 16:41:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 222 transitions. [2025-02-05 16:41:21,246 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 222 transitions. Word has length 65 [2025-02-05 16:41:21,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:21,246 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 222 transitions. [2025-02-05 16:41:21,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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) [2025-02-05 16:41:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 222 transitions. [2025-02-05 16:41:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:21,247 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:21,247 INFO L218 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, 1] [2025-02-05 16:41:21,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-05 16:41:21,247 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:21,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1088405693, now seen corresponding path program 1 times [2025-02-05 16:41:21,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:21,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27866408] [2025-02-05 16:41:21,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:21,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:21,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:21,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:21,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:21,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:21,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27866408] [2025-02-05 16:41:21,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27866408] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:21,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:21,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 16:41:21,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487531949] [2025-02-05 16:41:21,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:21,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 16:41:21,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:21,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 16:41:21,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:21,593 INFO L87 Difference]: Start difference. First operand 182 states and 222 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:22,080 INFO L93 Difference]: Finished difference Result 479 states and 622 transitions. [2025-02-05 16:41:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-05 16:41:22,081 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:22,082 INFO L225 Difference]: With dead ends: 479 [2025-02-05 16:41:22,082 INFO L226 Difference]: Without dead ends: 421 [2025-02-05 16:41:22,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:41:22,083 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1362 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:22,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1567 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:22,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-02-05 16:41:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 178. [2025-02-05 16:41:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 172 states have (on average 1.2616279069767442) internal successors, (217), 177 states have internal predecessors, (217), 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) [2025-02-05 16:41:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2025-02-05 16:41:22,091 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 65 [2025-02-05 16:41:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:22,091 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2025-02-05 16:41:22,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2025-02-05 16:41:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:22,092 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:22,092 INFO L218 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, 1] [2025-02-05 16:41:22,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-05 16:41:22,092 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:22,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -210700697, now seen corresponding path program 1 times [2025-02-05 16:41:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995657752] [2025-02-05 16:41:22,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:22,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:22,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:22,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:22,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:22,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:22,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995657752] [2025-02-05 16:41:22,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995657752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:22,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:22,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 16:41:22,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219208917] [2025-02-05 16:41:22,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:22,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 16:41:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:22,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 16:41:22,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:22,466 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:22,944 INFO L93 Difference]: Finished difference Result 475 states and 617 transitions. [2025-02-05 16:41:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-05 16:41:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:22,946 INFO L225 Difference]: With dead ends: 475 [2025-02-05 16:41:22,946 INFO L226 Difference]: Without dead ends: 420 [2025-02-05 16:41:22,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:41:22,947 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1373 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:22,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1609 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-02-05 16:41:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 177. [2025-02-05 16:41:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 176 states have internal predecessors, (215), 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) [2025-02-05 16:41:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2025-02-05 16:41:22,951 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 65 [2025-02-05 16:41:22,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:22,952 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2025-02-05 16:41:22,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:22,952 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2025-02-05 16:41:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:22,952 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:22,952 INFO L218 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, 1] [2025-02-05 16:41:22,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-05 16:41:22,953 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:22,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash -490132286, now seen corresponding path program 1 times [2025-02-05 16:41:22,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:22,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382924410] [2025-02-05 16:41:22,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:22,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:22,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:22,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:22,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:22,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:23,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382924410] [2025-02-05 16:41:23,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382924410] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:23,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-02-05 16:41:23,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422586417] [2025-02-05 16:41:23,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:23,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-05 16:41:23,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:23,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-05 16:41:23,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:41:23,691 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 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) [2025-02-05 16:41:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:25,418 INFO L93 Difference]: Finished difference Result 580 states and 738 transitions. [2025-02-05 16:41:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-05 16:41:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:25,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:25,420 INFO L225 Difference]: With dead ends: 580 [2025-02-05 16:41:25,420 INFO L226 Difference]: Without dead ends: 574 [2025-02-05 16:41:25,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=1420, Unknown=0, NotChecked=0, Total=1722 [2025-02-05 16:41:25,422 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 2350 mSDsluCounter, 4824 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 5229 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:25,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 5229 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-05 16:41:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2025-02-05 16:41:25,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 190. [2025-02-05 16:41:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 184 states have (on average 1.2608695652173914) internal successors, (232), 189 states have internal predecessors, (232), 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) [2025-02-05 16:41:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2025-02-05 16:41:25,426 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 65 [2025-02-05 16:41:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:25,426 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2025-02-05 16:41:25,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 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) [2025-02-05 16:41:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2025-02-05 16:41:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:41:25,427 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:25,427 INFO L218 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, 1] [2025-02-05 16:41:25,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-05 16:41:25,427 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:25,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash 34725583, now seen corresponding path program 1 times [2025-02-05 16:41:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:25,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369054776] [2025-02-05 16:41:25,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:25,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:41:25,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:41:25,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:25,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:25,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:25,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369054776] [2025-02-05 16:41:25,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369054776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:25,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:25,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 16:41:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913703424] [2025-02-05 16:41:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:25,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 16:41:25,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:25,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 16:41:25,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:25,738 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:26,292 INFO L93 Difference]: Finished difference Result 463 states and 601 transitions. [2025-02-05 16:41:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-05 16:41:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 65 [2025-02-05 16:41:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:26,294 INFO L225 Difference]: With dead ends: 463 [2025-02-05 16:41:26,294 INFO L226 Difference]: Without dead ends: 424 [2025-02-05 16:41:26,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2025-02-05 16:41:26,295 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 666 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:26,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 3948 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-02-05 16:41:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 145. [2025-02-05 16:41:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 142 states have (on average 1.2605633802816902) internal successors, (179), 144 states have internal predecessors, (179), 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) [2025-02-05 16:41:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2025-02-05 16:41:26,298 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 65 [2025-02-05 16:41:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:26,298 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2025-02-05 16:41:26,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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) [2025-02-05 16:41:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2025-02-05 16:41:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-05 16:41:26,299 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:26,299 INFO L218 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, 1, 1] [2025-02-05 16:41:26,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-05 16:41:26,299 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:26,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1742300808, now seen corresponding path program 1 times [2025-02-05 16:41:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:26,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266290014] [2025-02-05 16:41:26,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:26,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-05 16:41:26,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-05 16:41:26,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:26,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:26,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:26,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266290014] [2025-02-05 16:41:26,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266290014] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:26,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:26,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 16:41:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807204397] [2025-02-05 16:41:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:26,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 16:41:26,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:26,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 16:41:26,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-02-05 16:41:26,512 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 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) [2025-02-05 16:41:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:27,094 INFO L93 Difference]: Finished difference Result 492 states and 670 transitions. [2025-02-05 16:41:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-05 16:41:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 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 66 [2025-02-05 16:41:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:27,096 INFO L225 Difference]: With dead ends: 492 [2025-02-05 16:41:27,096 INFO L226 Difference]: Without dead ends: 420 [2025-02-05 16:41:27,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-02-05 16:41:27,097 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1557 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:27,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 860 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:41:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-02-05 16:41:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 149. [2025-02-05 16:41:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.2534246575342465) internal successors, (183), 148 states have internal predecessors, (183), 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) [2025-02-05 16:41:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 183 transitions. [2025-02-05 16:41:27,099 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 183 transitions. Word has length 66 [2025-02-05 16:41:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:27,100 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 183 transitions. [2025-02-05 16:41:27,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 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) [2025-02-05 16:41:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 183 transitions. [2025-02-05 16:41:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-05 16:41:27,100 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:27,100 INFO L218 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, 1, 1] [2025-02-05 16:41:27,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-05 16:41:27,101 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:27,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash -474731046, now seen corresponding path program 1 times [2025-02-05 16:41:27,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930961276] [2025-02-05 16:41:27,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:27,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:27,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-05 16:41:27,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-05 16:41:27,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:27,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:27,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:27,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930961276] [2025-02-05 16:41:27,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930961276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:27,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:27,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:27,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483211864] [2025-02-05 16:41:27,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:27,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:27,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:27,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:27,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:27,229 INFO L87 Difference]: Start difference. First operand 149 states and 183 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2025-02-05 16:41:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:27,457 INFO L93 Difference]: Finished difference Result 231 states and 292 transitions. [2025-02-05 16:41:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 16:41:27,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2025-02-05 16:41:27,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:27,458 INFO L225 Difference]: With dead ends: 231 [2025-02-05 16:41:27,458 INFO L226 Difference]: Without dead ends: 224 [2025-02-05 16:41:27,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:27,459 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 1013 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:27,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 445 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:27,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2025-02-05 16:41:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 149. [2025-02-05 16:41:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 148 states have internal predecessors, (182), 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) [2025-02-05 16:41:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2025-02-05 16:41:27,461 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 66 [2025-02-05 16:41:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:27,461 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2025-02-05 16:41:27,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2025-02-05 16:41:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2025-02-05 16:41:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-05 16:41:27,461 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:27,461 INFO L218 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, 1, 1, 1] [2025-02-05 16:41:27,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-05 16:41:27,462 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:27,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:27,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1063207298, now seen corresponding path program 1 times [2025-02-05 16:41:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:27,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86680171] [2025-02-05 16:41:27,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:27,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:27,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-05 16:41:27,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-05 16:41:27,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:27,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86680171] [2025-02-05 16:41:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86680171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:27,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:27,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 16:41:27,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750904974] [2025-02-05 16:41:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:27,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 16:41:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:27,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 16:41:27,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:27,574 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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) [2025-02-05 16:41:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:27,875 INFO L93 Difference]: Finished difference Result 310 states and 401 transitions. [2025-02-05 16:41:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:41:27,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2025-02-05 16:41:27,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:27,876 INFO L225 Difference]: With dead ends: 310 [2025-02-05 16:41:27,877 INFO L226 Difference]: Without dead ends: 238 [2025-02-05 16:41:27,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-02-05 16:41:27,877 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 534 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:27,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 732 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-02-05 16:41:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 145. [2025-02-05 16:41:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 142 states have (on average 1.2464788732394365) internal successors, (177), 144 states have internal predecessors, (177), 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) [2025-02-05 16:41:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 177 transitions. [2025-02-05 16:41:27,879 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 177 transitions. Word has length 67 [2025-02-05 16:41:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:27,879 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 177 transitions. [2025-02-05 16:41:27,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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) [2025-02-05 16:41:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 177 transitions. [2025-02-05 16:41:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-05 16:41:27,879 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:27,879 INFO L218 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, 1, 1, 1, 1] [2025-02-05 16:41:27,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-05 16:41:27,880 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:27,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1612932329, now seen corresponding path program 1 times [2025-02-05 16:41:27,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:27,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532519038] [2025-02-05 16:41:27,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:27,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:27,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-05 16:41:27,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-05 16:41:27,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:27,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:28,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:28,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532519038] [2025-02-05 16:41:28,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532519038] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:28,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:28,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 16:41:28,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344533303] [2025-02-05 16:41:28,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:28,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 16:41:28,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:28,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 16:41:28,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:41:28,174 INFO L87 Difference]: Start difference. First operand 145 states and 177 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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) [2025-02-05 16:41:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:28,668 INFO L93 Difference]: Finished difference Result 342 states and 454 transitions. [2025-02-05 16:41:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-05 16:41:28,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 68 [2025-02-05 16:41:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:28,670 INFO L225 Difference]: With dead ends: 342 [2025-02-05 16:41:28,670 INFO L226 Difference]: Without dead ends: 336 [2025-02-05 16:41:28,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2025-02-05 16:41:28,670 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 698 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:28,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1902 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:41:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-02-05 16:41:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 139. [2025-02-05 16:41:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.2481751824817517) internal successors, (171), 138 states have internal predecessors, (171), 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) [2025-02-05 16:41:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 171 transitions. [2025-02-05 16:41:28,673 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 171 transitions. Word has length 68 [2025-02-05 16:41:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:28,673 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 171 transitions. [2025-02-05 16:41:28,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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) [2025-02-05 16:41:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 171 transitions. [2025-02-05 16:41:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-05 16:41:28,674 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:28,674 INFO L218 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, 1, 1, 1, 1] [2025-02-05 16:41:28,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-05 16:41:28,674 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:28,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:28,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1111323594, now seen corresponding path program 1 times [2025-02-05 16:41:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:28,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267313579] [2025-02-05 16:41:28,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:28,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:28,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-05 16:41:28,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-05 16:41:28,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:28,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:29,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:29,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267313579] [2025-02-05 16:41:29,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267313579] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:29,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:29,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2025-02-05 16:41:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887310497] [2025-02-05 16:41:29,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:29,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-05 16:41:29,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:29,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-05 16:41:29,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2025-02-05 16:41:29,223 INFO L87 Difference]: Start difference. First operand 139 states and 171 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 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) [2025-02-05 16:41:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:30,913 INFO L93 Difference]: Finished difference Result 472 states and 620 transitions. [2025-02-05 16:41:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-05 16:41:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 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 68 [2025-02-05 16:41:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:30,915 INFO L225 Difference]: With dead ends: 472 [2025-02-05 16:41:30,915 INFO L226 Difference]: Without dead ends: 464 [2025-02-05 16:41:30,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=1179, Unknown=0, NotChecked=0, Total=1406 [2025-02-05 16:41:30,917 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 1222 mSDsluCounter, 4571 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:30,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 4968 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-05 16:41:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2025-02-05 16:41:30,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 153. [2025-02-05 16:41:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 151 states have (on average 1.2450331125827814) internal successors, (188), 152 states have internal predecessors, (188), 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) [2025-02-05 16:41:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2025-02-05 16:41:30,922 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 68 [2025-02-05 16:41:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:30,922 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2025-02-05 16:41:30,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 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) [2025-02-05 16:41:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2025-02-05 16:41:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-05 16:41:30,922 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:30,922 INFO L218 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, 1, 1, 1, 1, 1] [2025-02-05 16:41:30,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-05 16:41:30,927 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:30,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1623034477, now seen corresponding path program 1 times [2025-02-05 16:41:30,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:30,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723581597] [2025-02-05 16:41:30,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:30,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:30,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-05 16:41:30,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-05 16:41:30,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:30,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:31,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:31,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723581597] [2025-02-05 16:41:31,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723581597] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:31,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:31,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-05 16:41:31,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800385231] [2025-02-05 16:41:31,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:31,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 16:41:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:31,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 16:41:31,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-02-05 16:41:31,290 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2025-02-05 16:41:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:31,635 INFO L93 Difference]: Finished difference Result 226 states and 291 transitions. [2025-02-05 16:41:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-05 16:41:31,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2025-02-05 16:41:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:31,636 INFO L225 Difference]: With dead ends: 226 [2025-02-05 16:41:31,636 INFO L226 Difference]: Without dead ends: 211 [2025-02-05 16:41:31,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:41:31,637 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 579 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:31,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1112 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:31,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-02-05 16:41:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 127. [2025-02-05 16:41:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.253968253968254) internal successors, (158), 126 states have internal predecessors, (158), 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) [2025-02-05 16:41:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2025-02-05 16:41:31,639 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 69 [2025-02-05 16:41:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:31,639 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2025-02-05 16:41:31,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2025-02-05 16:41:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2025-02-05 16:41:31,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-05 16:41:31,640 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:31,640 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:31,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-05 16:41:31,641 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:31,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:31,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1705723714, now seen corresponding path program 1 times [2025-02-05 16:41:31,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:31,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334819497] [2025-02-05 16:41:31,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:31,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:31,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-05 16:41:31,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-05 16:41:31,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:31,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:31,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:31,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334819497] [2025-02-05 16:41:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334819497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:31,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366137275] [2025-02-05 16:41:31,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:31,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:31,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:31,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:31,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:31,704 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-05 16:41:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:31,788 INFO L93 Difference]: Finished difference Result 559 states and 798 transitions. [2025-02-05 16:41:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:41:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 91 [2025-02-05 16:41:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:31,790 INFO L225 Difference]: With dead ends: 559 [2025-02-05 16:41:31,790 INFO L226 Difference]: Without dead ends: 505 [2025-02-05 16:41:31,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-02-05 16:41:31,791 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 819 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:31,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1015 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2025-02-05 16:41:31,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 179. [2025-02-05 16:41:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.3202247191011236) internal successors, (235), 178 states have internal predecessors, (235), 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) [2025-02-05 16:41:31,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2025-02-05 16:41:31,794 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 91 [2025-02-05 16:41:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:31,794 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2025-02-05 16:41:31,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-05 16:41:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2025-02-05 16:41:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-05 16:41:31,794 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:31,794 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:31,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-05 16:41:31,794 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:31,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:31,795 INFO L85 PathProgramCache]: Analyzing trace with hash -899188006, now seen corresponding path program 1 times [2025-02-05 16:41:31,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:31,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666791194] [2025-02-05 16:41:31,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:31,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:31,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-05 16:41:31,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-05 16:41:31,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:31,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:31,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666791194] [2025-02-05 16:41:31,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666791194] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:31,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:31,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:31,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721205006] [2025-02-05 16:41:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:31,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:31,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:31,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:31,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:31,912 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,029 INFO L93 Difference]: Finished difference Result 657 states and 941 transitions. [2025-02-05 16:41:32,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:32,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 93 [2025-02-05 16:41:32,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,031 INFO L225 Difference]: With dead ends: 657 [2025-02-05 16:41:32,031 INFO L226 Difference]: Without dead ends: 551 [2025-02-05 16:41:32,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:32,032 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 571 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 727 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:32,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-02-05 16:41:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 283. [2025-02-05 16:41:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.3829787234042554) internal successors, (390), 282 states have internal predecessors, (390), 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) [2025-02-05 16:41:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 390 transitions. [2025-02-05 16:41:32,035 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 390 transitions. Word has length 93 [2025-02-05 16:41:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,035 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 390 transitions. [2025-02-05 16:41:32,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 390 transitions. [2025-02-05 16:41:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-05 16:41:32,035 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,036 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-05 16:41:32,036 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 308365914, now seen corresponding path program 1 times [2025-02-05 16:41:32,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180011099] [2025-02-05 16:41:32,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-05 16:41:32,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-05 16:41:32,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180011099] [2025-02-05 16:41:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180011099] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:32,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510399702] [2025-02-05 16:41:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:32,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:32,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:32,124 INFO L87 Difference]: Start difference. First operand 283 states and 390 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,196 INFO L93 Difference]: Finished difference Result 761 states and 1096 transitions. [2025-02-05 16:41:32,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:32,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 93 [2025-02-05 16:41:32,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,198 INFO L225 Difference]: With dead ends: 761 [2025-02-05 16:41:32,198 INFO L226 Difference]: Without dead ends: 655 [2025-02-05 16:41:32,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:32,199 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 611 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 674 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2025-02-05 16:41:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 439. [2025-02-05 16:41:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.4200913242009132) internal successors, (622), 438 states have internal predecessors, (622), 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) [2025-02-05 16:41:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 622 transitions. [2025-02-05 16:41:32,208 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 622 transitions. Word has length 93 [2025-02-05 16:41:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,209 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 622 transitions. [2025-02-05 16:41:32,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 622 transitions. [2025-02-05 16:41:32,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-05 16:41:32,209 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,209 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-05 16:41:32,210 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1830821414, now seen corresponding path program 1 times [2025-02-05 16:41:32,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448036679] [2025-02-05 16:41:32,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-05 16:41:32,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-05 16:41:32,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448036679] [2025-02-05 16:41:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448036679] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653668911] [2025-02-05 16:41:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:32,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:32,273 INFO L87 Difference]: Start difference. First operand 439 states and 622 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,329 INFO L93 Difference]: Finished difference Result 865 states and 1251 transitions. [2025-02-05 16:41:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:32,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 93 [2025-02-05 16:41:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,331 INFO L225 Difference]: With dead ends: 865 [2025-02-05 16:41:32,331 INFO L226 Difference]: Without dead ends: 759 [2025-02-05 16:41:32,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:32,332 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 587 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 725 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2025-02-05 16:41:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 543. [2025-02-05 16:41:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.433579335793358) internal successors, (777), 542 states have internal predecessors, (777), 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) [2025-02-05 16:41:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 777 transitions. [2025-02-05 16:41:32,338 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 777 transitions. Word has length 93 [2025-02-05 16:41:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,339 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 777 transitions. [2025-02-05 16:41:32,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 777 transitions. [2025-02-05 16:41:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-05 16:41:32,339 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,339 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-05 16:41:32,340 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1555516790, now seen corresponding path program 1 times [2025-02-05 16:41:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900433434] [2025-02-05 16:41:32,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-05 16:41:32,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-05 16:41:32,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900433434] [2025-02-05 16:41:32,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900433434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:32,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432550143] [2025-02-05 16:41:32,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:32,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:32,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:32,378 INFO L87 Difference]: Start difference. First operand 543 states and 777 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,395 INFO L93 Difference]: Finished difference Result 1425 states and 2073 transitions. [2025-02-05 16:41:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:32,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2025-02-05 16:41:32,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,398 INFO L225 Difference]: With dead ends: 1425 [2025-02-05 16:41:32,398 INFO L226 Difference]: Without dead ends: 955 [2025-02-05 16:41:32,398 INFO L434 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 [2025-02-05 16:41:32,399 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 88 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:32,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2025-02-05 16:41:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 944. [2025-02-05 16:41:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 943 states have (on average 1.4220572640509013) internal successors, (1341), 943 states have internal predecessors, (1341), 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) [2025-02-05 16:41:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1341 transitions. [2025-02-05 16:41:32,425 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1341 transitions. Word has length 93 [2025-02-05 16:41:32,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,426 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1341 transitions. [2025-02-05 16:41:32,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1341 transitions. [2025-02-05 16:41:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-05 16:41:32,426 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,426 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-05 16:41:32,427 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1590610588, now seen corresponding path program 1 times [2025-02-05 16:41:32,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114862046] [2025-02-05 16:41:32,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-05 16:41:32,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-05 16:41:32,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114862046] [2025-02-05 16:41:32,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114862046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:32,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194145380] [2025-02-05 16:41:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:32,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:32,536 INFO L87 Difference]: Start difference. First operand 944 states and 1341 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,602 INFO L93 Difference]: Finished difference Result 1817 states and 2605 transitions. [2025-02-05 16:41:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:32,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 93 [2025-02-05 16:41:32,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,604 INFO L225 Difference]: With dead ends: 1817 [2025-02-05 16:41:32,604 INFO L226 Difference]: Without dead ends: 946 [2025-02-05 16:41:32,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:41:32,605 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 75 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 455 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2025-02-05 16:41:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 944. [2025-02-05 16:41:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 943 states have (on average 1.4167550371155886) internal successors, (1336), 943 states have internal predecessors, (1336), 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) [2025-02-05 16:41:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2025-02-05 16:41:32,625 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 93 [2025-02-05 16:41:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,625 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2025-02-05 16:41:32,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2025-02-05 16:41:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2025-02-05 16:41:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-05 16:41:32,626 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,626 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-05 16:41:32,626 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2059583774, now seen corresponding path program 1 times [2025-02-05 16:41:32,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727353047] [2025-02-05 16:41:32,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 16:41:32,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 16:41:32,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727353047] [2025-02-05 16:41:32,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727353047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:32,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442869136] [2025-02-05 16:41:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:32,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:32,717 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2025-02-05 16:41:32,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,778 INFO L93 Difference]: Finished difference Result 2614 states and 3726 transitions. [2025-02-05 16:41:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:32,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2025-02-05 16:41:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,785 INFO L225 Difference]: With dead ends: 2614 [2025-02-05 16:41:32,786 INFO L226 Difference]: Without dead ends: 1743 [2025-02-05 16:41:32,787 INFO L434 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 [2025-02-05 16:41:32,788 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 72 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:41:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2025-02-05 16:41:32,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1669. [2025-02-05 16:41:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.4142685851318946) internal successors, (2359), 1668 states have internal predecessors, (2359), 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) [2025-02-05 16:41:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2359 transitions. [2025-02-05 16:41:32,802 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2359 transitions. Word has length 94 [2025-02-05 16:41:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,802 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2359 transitions. [2025-02-05 16:41:32,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2025-02-05 16:41:32,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2359 transitions. [2025-02-05 16:41:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-05 16:41:32,803 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,803 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-05 16:41:32,803 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1215328190, now seen corresponding path program 1 times [2025-02-05 16:41:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680801828] [2025-02-05 16:41:32,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-05 16:41:32,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-05 16:41:32,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680801828] [2025-02-05 16:41:32,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680801828] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:32,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768486807] [2025-02-05 16:41:32,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:32,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:32,879 INFO L87 Difference]: Start difference. First operand 1669 states and 2359 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2025-02-05 16:41:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:32,897 INFO L93 Difference]: Finished difference Result 4717 states and 6669 transitions. [2025-02-05 16:41:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:32,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2025-02-05 16:41:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:32,903 INFO L225 Difference]: With dead ends: 4717 [2025-02-05 16:41:32,903 INFO L226 Difference]: Without dead ends: 3121 [2025-02-05 16:41:32,905 INFO L434 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 [2025-02-05 16:41:32,905 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 65 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:32,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:32,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2025-02-05 16:41:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2975. [2025-02-05 16:41:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 1.402488231338265) internal successors, (4171), 2974 states have internal predecessors, (4171), 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) [2025-02-05 16:41:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 4171 transitions. [2025-02-05 16:41:32,928 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 4171 transitions. Word has length 95 [2025-02-05 16:41:32,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:32,929 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 4171 transitions. [2025-02-05 16:41:32,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2025-02-05 16:41:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 4171 transitions. [2025-02-05 16:41:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-05 16:41:32,929 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:32,929 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:32,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-05 16:41:32,930 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:32,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1058846294, now seen corresponding path program 1 times [2025-02-05 16:41:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899412142] [2025-02-05 16:41:32,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:32,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-05 16:41:32,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-05 16:41:32,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:32,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:32,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899412142] [2025-02-05 16:41:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899412142] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:32,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724883288] [2025-02-05 16:41:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:32,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:32,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:32,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:32,989 INFO L87 Difference]: Start difference. First operand 2975 states and 4171 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-05 16:41:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:33,014 INFO L93 Difference]: Finished difference Result 8491 states and 11853 transitions. [2025-02-05 16:41:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:33,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2025-02-05 16:41:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:33,026 INFO L225 Difference]: With dead ends: 8491 [2025-02-05 16:41:33,026 INFO L226 Difference]: Without dead ends: 5589 [2025-02-05 16:41:33,029 INFO L434 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 [2025-02-05 16:41:33,029 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 55 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:33,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 331 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2025-02-05 16:41:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 5299. [2025-02-05 16:41:33,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 1.3829747074367686) internal successors, (7327), 5298 states have internal predecessors, (7327), 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) [2025-02-05 16:41:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7327 transitions. [2025-02-05 16:41:33,090 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7327 transitions. Word has length 96 [2025-02-05 16:41:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:33,090 INFO L471 AbstractCegarLoop]: Abstraction has 5299 states and 7327 transitions. [2025-02-05 16:41:33,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-05 16:41:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7327 transitions. [2025-02-05 16:41:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 16:41:33,090 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:33,091 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:33,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-05 16:41:33,091 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:33,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 648068651, now seen corresponding path program 1 times [2025-02-05 16:41:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341880825] [2025-02-05 16:41:33,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:33,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 16:41:33,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 16:41:33,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:33,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:33,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341880825] [2025-02-05 16:41:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341880825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:33,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936109336] [2025-02-05 16:41:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:33,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:33,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:33,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:33,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:33,251 INFO L87 Difference]: Start difference. First operand 5299 states and 7327 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-05 16:41:33,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:33,308 INFO L93 Difference]: Finished difference Result 5493 states and 7584 transitions. [2025-02-05 16:41:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 97 [2025-02-05 16:41:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:33,323 INFO L225 Difference]: With dead ends: 5493 [2025-02-05 16:41:33,324 INFO L226 Difference]: Without dead ends: 5491 [2025-02-05 16:41:33,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:33,325 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:33,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 759 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5491 states. [2025-02-05 16:41:33,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5491 to 5491. [2025-02-05 16:41:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 1.362295081967213) internal successors, (7479), 5490 states have internal predecessors, (7479), 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) [2025-02-05 16:41:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 7479 transitions. [2025-02-05 16:41:33,381 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 7479 transitions. Word has length 97 [2025-02-05 16:41:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:33,382 INFO L471 AbstractCegarLoop]: Abstraction has 5491 states and 7479 transitions. [2025-02-05 16:41:33,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-05 16:41:33,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 7479 transitions. [2025-02-05 16:41:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 16:41:33,383 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:33,383 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:33,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-05 16:41:33,383 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:33,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:33,384 INFO L85 PathProgramCache]: Analyzing trace with hash 863438709, now seen corresponding path program 1 times [2025-02-05 16:41:33,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:33,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704172221] [2025-02-05 16:41:33,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:33,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:33,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 16:41:33,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 16:41:33,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:33,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:33,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:33,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704172221] [2025-02-05 16:41:33,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704172221] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:41:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861689245] [2025-02-05 16:41:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:33,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:41:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:33,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:41:33,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:41:33,476 INFO L87 Difference]: Start difference. First operand 5491 states and 7479 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-05 16:41:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:33,555 INFO L93 Difference]: Finished difference Result 10333 states and 14140 transitions. [2025-02-05 16:41:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:41:33,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 97 [2025-02-05 16:41:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:33,571 INFO L225 Difference]: With dead ends: 10333 [2025-02-05 16:41:33,571 INFO L226 Difference]: Without dead ends: 9123 [2025-02-05 16:41:33,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:41:33,575 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 582 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:33,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 800 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2025-02-05 16:41:33,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 6699. [2025-02-05 16:41:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 6698 states have (on average 1.3626455658405494) internal successors, (9127), 6698 states have internal predecessors, (9127), 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) [2025-02-05 16:41:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9127 transitions. [2025-02-05 16:41:33,683 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9127 transitions. Word has length 97 [2025-02-05 16:41:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:33,686 INFO L471 AbstractCegarLoop]: Abstraction has 6699 states and 9127 transitions. [2025-02-05 16:41:33,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-05 16:41:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9127 transitions. [2025-02-05 16:41:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-05 16:41:33,687 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:33,687 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:33,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-05 16:41:33,687 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:33,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash -115048879, now seen corresponding path program 1 times [2025-02-05 16:41:33,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:33,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94768843] [2025-02-05 16:41:33,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:33,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-05 16:41:33,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-05 16:41:33,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:33,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:33,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:33,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94768843] [2025-02-05 16:41:33,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94768843] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:33,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:33,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:33,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352744072] [2025-02-05 16:41:33,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:33,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:33,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:33,750 INFO L87 Difference]: Start difference. First operand 6699 states and 9127 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2025-02-05 16:41:33,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:33,827 INFO L93 Difference]: Finished difference Result 17399 states and 23653 transitions. [2025-02-05 16:41:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2025-02-05 16:41:33,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:33,860 INFO L225 Difference]: With dead ends: 17399 [2025-02-05 16:41:33,863 INFO L226 Difference]: Without dead ends: 10773 [2025-02-05 16:41:33,867 INFO L434 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 [2025-02-05 16:41:33,871 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 76 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:33,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 334 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2025-02-05 16:41:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10067. [2025-02-05 16:41:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10067 states, 10066 states have (on average 1.3458176038148222) internal successors, (13547), 10066 states have internal predecessors, (13547), 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) [2025-02-05 16:41:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 13547 transitions. [2025-02-05 16:41:34,067 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 13547 transitions. Word has length 98 [2025-02-05 16:41:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:34,067 INFO L471 AbstractCegarLoop]: Abstraction has 10067 states and 13547 transitions. [2025-02-05 16:41:34,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2025-02-05 16:41:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 13547 transitions. [2025-02-05 16:41:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-02-05 16:41:34,070 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:34,070 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:34,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-02-05 16:41:34,070 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:34,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:34,071 INFO L85 PathProgramCache]: Analyzing trace with hash 142099927, now seen corresponding path program 1 times [2025-02-05 16:41:34,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:34,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179394277] [2025-02-05 16:41:34,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:34,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-05 16:41:34,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-05 16:41:34,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:34,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:34,139 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:34,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:34,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179394277] [2025-02-05 16:41:34,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179394277] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:41:34,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:41:34,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:41:34,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582340705] [2025-02-05 16:41:34,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:41:34,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:41:34,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:34,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:41:34,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:41:34,140 INFO L87 Difference]: Start difference. First operand 10067 states and 13547 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2025-02-05 16:41:34,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:34,217 INFO L93 Difference]: Finished difference Result 20063 states and 27017 transitions. [2025-02-05 16:41:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:41:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2025-02-05 16:41:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:34,230 INFO L225 Difference]: With dead ends: 20063 [2025-02-05 16:41:34,231 INFO L226 Difference]: Without dead ends: 10069 [2025-02-05 16:41:34,237 INFO L434 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 [2025-02-05 16:41:34,238 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 68 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:34,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 308 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:41:34,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10069 states. [2025-02-05 16:41:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10069 to 10067. [2025-02-05 16:41:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10067 states, 10066 states have (on average 1.3283330021855753) internal successors, (13371), 10066 states have internal predecessors, (13371), 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) [2025-02-05 16:41:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 13371 transitions. [2025-02-05 16:41:34,320 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 13371 transitions. Word has length 124 [2025-02-05 16:41:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:34,320 INFO L471 AbstractCegarLoop]: Abstraction has 10067 states and 13371 transitions. [2025-02-05 16:41:34,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2025-02-05 16:41:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 13371 transitions. [2025-02-05 16:41:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-02-05 16:41:34,321 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:34,321 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:34,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-05 16:41:34,322 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:34,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2108306651, now seen corresponding path program 1 times [2025-02-05 16:41:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:34,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888292177] [2025-02-05 16:41:34,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:34,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-05 16:41:34,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-05 16:41:34,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:34,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:34,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:34,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888292177] [2025-02-05 16:41:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888292177] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:41:34,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798555009] [2025-02-05 16:41:34,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:34,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:34,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:41:34,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:41:34,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 16:41:34,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-05 16:41:34,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-05 16:41:34,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:34,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:34,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-05 16:41:34,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:41:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:35,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:41:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:36,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798555009] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:41:36,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:41:36,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 29 [2025-02-05 16:41:36,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956931941] [2025-02-05 16:41:36,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:41:36,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-05 16:41:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:36,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-05 16:41:36,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2025-02-05 16:41:36,605 INFO L87 Difference]: Start difference. First operand 10067 states and 13371 transitions. Second operand has 30 states, 30 states have (on average 11.033333333333333) internal successors, (331), 29 states have internal predecessors, (331), 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) [2025-02-05 16:41:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:43,766 INFO L93 Difference]: Finished difference Result 87188 states and 115221 transitions. [2025-02-05 16:41:43,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2025-02-05 16:41:43,767 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.033333333333333) internal successors, (331), 29 states have internal predecessors, (331), 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 124 [2025-02-05 16:41:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:43,834 INFO L225 Difference]: With dead ends: 87188 [2025-02-05 16:41:43,834 INFO L226 Difference]: Without dead ends: 77194 [2025-02-05 16:41:43,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10593 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4585, Invalid=27277, Unknown=0, NotChecked=0, Total=31862 [2025-02-05 16:41:43,858 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 4212 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 4077 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:43,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 2997 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4077 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-05 16:41:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77194 states. [2025-02-05 16:41:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77194 to 50871. [2025-02-05 16:41:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50871 states, 50870 states have (on average 1.3185767643011599) internal successors, (67076), 50870 states have internal predecessors, (67076), 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) [2025-02-05 16:41:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50871 states to 50871 states and 67076 transitions. [2025-02-05 16:41:44,663 INFO L78 Accepts]: Start accepts. Automaton has 50871 states and 67076 transitions. Word has length 124 [2025-02-05 16:41:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:44,665 INFO L471 AbstractCegarLoop]: Abstraction has 50871 states and 67076 transitions. [2025-02-05 16:41:44,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.033333333333333) internal successors, (331), 29 states have internal predecessors, (331), 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) [2025-02-05 16:41:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 50871 states and 67076 transitions. [2025-02-05 16:41:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-02-05 16:41:44,669 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:44,669 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:44,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 16:41:44,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:44,870 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:44,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1754007307, now seen corresponding path program 1 times [2025-02-05 16:41:44,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:44,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317173827] [2025-02-05 16:41:44,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:44,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:44,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-02-05 16:41:44,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-02-05 16:41:44,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:44,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:45,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317173827] [2025-02-05 16:41:45,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317173827] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:41:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523457100] [2025-02-05 16:41:45,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:45,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:45,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:41:45,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:41:45,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 16:41:45,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-02-05 16:41:45,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-02-05 16:41:45,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:45,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:45,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-05 16:41:45,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:41:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:46,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:41:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:46,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523457100] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:41:46,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:41:46,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 26 [2025-02-05 16:41:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511441350] [2025-02-05 16:41:46,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:41:46,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-05 16:41:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:46,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-05 16:41:46,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2025-02-05 16:41:46,478 INFO L87 Difference]: Start difference. First operand 50871 states and 67076 transitions. Second operand has 26 states, 26 states have (on average 12.73076923076923) internal successors, (331), 26 states have internal predecessors, (331), 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) [2025-02-05 16:41:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:49,816 INFO L93 Difference]: Finished difference Result 221565 states and 292107 transitions. [2025-02-05 16:41:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-02-05 16:41:49,816 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.73076923076923) internal successors, (331), 26 states have internal predecessors, (331), 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 125 [2025-02-05 16:41:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:49,989 INFO L225 Difference]: With dead ends: 221565 [2025-02-05 16:41:49,989 INFO L226 Difference]: Without dead ends: 170830 [2025-02-05 16:41:50,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2686 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1367, Invalid=8533, Unknown=0, NotChecked=0, Total=9900 [2025-02-05 16:41:50,039 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 2013 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 3446 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 3469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:50,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 3641 Invalid, 3469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3446 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-05 16:41:50,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170830 states. [2025-02-05 16:41:51,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170830 to 119156. [2025-02-05 16:41:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119156 states, 119155 states have (on average 1.3162687256095003) internal successors, (156840), 119155 states have internal predecessors, (156840), 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) [2025-02-05 16:41:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119156 states to 119156 states and 156840 transitions. [2025-02-05 16:41:51,761 INFO L78 Accepts]: Start accepts. Automaton has 119156 states and 156840 transitions. Word has length 125 [2025-02-05 16:41:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:51,761 INFO L471 AbstractCegarLoop]: Abstraction has 119156 states and 156840 transitions. [2025-02-05 16:41:51,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.73076923076923) internal successors, (331), 26 states have internal predecessors, (331), 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) [2025-02-05 16:41:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 119156 states and 156840 transitions. [2025-02-05 16:41:51,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-05 16:41:51,768 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:51,769 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:51,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 16:41:51,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:51,970 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:51,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash -515031220, now seen corresponding path program 1 times [2025-02-05 16:41:51,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:51,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862040866] [2025-02-05 16:41:51,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:51,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:41:51,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:41:51,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:51,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:52,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:52,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862040866] [2025-02-05 16:41:52,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862040866] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:41:52,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278761147] [2025-02-05 16:41:52,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:52,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:52,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:41:52,213 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:41:52,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-05 16:41:52,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:41:52,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:41:52,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:52,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:52,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-05 16:41:52,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:41:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:53,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:41:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:54,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278761147] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:41:54,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:41:54,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 34 [2025-02-05 16:41:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929382141] [2025-02-05 16:41:54,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:41:54,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-05 16:41:54,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:41:54,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-05 16:41:54,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2025-02-05 16:41:54,228 INFO L87 Difference]: Start difference. First operand 119156 states and 156840 transitions. Second operand has 35 states, 35 states have (on average 9.742857142857142) internal successors, (341), 34 states have internal predecessors, (341), 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) [2025-02-05 16:41:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:41:57,171 INFO L93 Difference]: Finished difference Result 233818 states and 308950 transitions. [2025-02-05 16:41:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-05 16:41:57,172 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 9.742857142857142) internal successors, (341), 34 states have internal predecessors, (341), 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 126 [2025-02-05 16:41:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:41:57,454 INFO L225 Difference]: With dead ends: 233818 [2025-02-05 16:41:57,454 INFO L226 Difference]: Without dead ends: 209948 [2025-02-05 16:41:57,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1120, Invalid=4580, Unknown=0, NotChecked=0, Total=5700 [2025-02-05 16:41:57,525 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 2830 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:41:57,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 2621 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-05 16:41:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209948 states. [2025-02-05 16:41:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209948 to 119142. [2025-02-05 16:41:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119142 states, 119141 states have (on average 1.3163058896601505) internal successors, (156826), 119141 states have internal predecessors, (156826), 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) [2025-02-05 16:41:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119142 states to 119142 states and 156826 transitions. [2025-02-05 16:41:59,262 INFO L78 Accepts]: Start accepts. Automaton has 119142 states and 156826 transitions. Word has length 126 [2025-02-05 16:41:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:41:59,263 INFO L471 AbstractCegarLoop]: Abstraction has 119142 states and 156826 transitions. [2025-02-05 16:41:59,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.742857142857142) internal successors, (341), 34 states have internal predecessors, (341), 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) [2025-02-05 16:41:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 119142 states and 156826 transitions. [2025-02-05 16:41:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-05 16:41:59,270 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:41:59,270 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:41:59,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 16:41:59,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:59,472 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:41:59,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:41:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1120670004, now seen corresponding path program 1 times [2025-02-05 16:41:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:41:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541274894] [2025-02-05 16:41:59,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:41:59,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:41:59,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:41:59,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:59,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:41:59,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:41:59,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541274894] [2025-02-05 16:41:59,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541274894] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:41:59,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943688324] [2025-02-05 16:41:59,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:41:59,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:41:59,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:41:59,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:41:59,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-05 16:41:59,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:41:59,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:41:59,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:41:59,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:41:59,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-05 16:41:59,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:42:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:00,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:42:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:01,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943688324] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:42:01,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:42:01,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2025-02-05 16:42:01,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020175788] [2025-02-05 16:42:01,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:42:01,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-05 16:42:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:42:01,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-05 16:42:01,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2025-02-05 16:42:01,144 INFO L87 Difference]: Start difference. First operand 119142 states and 156826 transitions. Second operand has 21 states, 21 states have (on average 15.0) internal successors, (315), 21 states have internal predecessors, (315), 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) [2025-02-05 16:42:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:42:03,170 INFO L93 Difference]: Finished difference Result 284171 states and 373990 transitions. [2025-02-05 16:42:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-05 16:42:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 15.0) internal successors, (315), 21 states have internal predecessors, (315), 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 126 [2025-02-05 16:42:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:42:03,705 INFO L225 Difference]: With dead ends: 284171 [2025-02-05 16:42:03,705 INFO L226 Difference]: Without dead ends: 227075 [2025-02-05 16:42:03,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2025-02-05 16:42:03,757 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1366 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 16:42:03,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 1190 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 16:42:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227075 states. [2025-02-05 16:42:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227075 to 183909. [2025-02-05 16:42:05,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183909 states, 183908 states have (on average 1.3126345781586446) internal successors, (241404), 183908 states have internal predecessors, (241404), 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) [2025-02-05 16:42:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183909 states to 183909 states and 241404 transitions. [2025-02-05 16:42:06,513 INFO L78 Accepts]: Start accepts. Automaton has 183909 states and 241404 transitions. Word has length 126 [2025-02-05 16:42:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:42:06,513 INFO L471 AbstractCegarLoop]: Abstraction has 183909 states and 241404 transitions. [2025-02-05 16:42:06,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.0) internal successors, (315), 21 states have internal predecessors, (315), 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) [2025-02-05 16:42:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 183909 states and 241404 transitions. [2025-02-05 16:42:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-05 16:42:06,523 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:42:06,524 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:42:06,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-05 16:42:06,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-02-05 16:42:06,728 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:42:06,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:42:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1338210838, now seen corresponding path program 1 times [2025-02-05 16:42:06,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:42:06,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836105374] [2025-02-05 16:42:06,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:42:06,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:42:06,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:42:06,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:42:06,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:42:06,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:42:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:07,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:42:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836105374] [2025-02-05 16:42:07,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836105374] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:42:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270119581] [2025-02-05 16:42:07,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:42:07,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:42:07,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:42:07,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:42:07,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-05 16:42:07,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-05 16:42:07,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-05 16:42:07,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:42:07,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:42:07,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-05 16:42:07,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:42:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:08,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:42:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:09,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270119581] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:42:09,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:42:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2025-02-05 16:42:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140808007] [2025-02-05 16:42:09,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:42:09,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-05 16:42:09,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:42:09,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-05 16:42:09,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2025-02-05 16:42:09,640 INFO L87 Difference]: Start difference. First operand 183909 states and 241404 transitions. Second operand has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 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) [2025-02-05 16:42:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:42:12,055 INFO L93 Difference]: Finished difference Result 727774 states and 959441 transitions. [2025-02-05 16:42:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-05 16:42:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 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 126 [2025-02-05 16:42:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:42:13,120 INFO L225 Difference]: With dead ends: 727774 [2025-02-05 16:42:13,120 INFO L226 Difference]: Without dead ends: 544015 [2025-02-05 16:42:13,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2025-02-05 16:42:13,226 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 1630 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 16:42:13,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 1055 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 16:42:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544015 states. [2025-02-05 16:42:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544015 to 446300. [2025-02-05 16:42:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446300 states, 446299 states have (on average 1.309877458833652) internal successors, (584597), 446299 states have internal predecessors, (584597), 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) [2025-02-05 16:42:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446300 states to 446300 states and 584597 transitions. [2025-02-05 16:42:19,425 INFO L78 Accepts]: Start accepts. Automaton has 446300 states and 584597 transitions. Word has length 126 [2025-02-05 16:42:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:42:19,425 INFO L471 AbstractCegarLoop]: Abstraction has 446300 states and 584597 transitions. [2025-02-05 16:42:19,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 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) [2025-02-05 16:42:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 446300 states and 584597 transitions. [2025-02-05 16:42:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-05 16:42:19,460 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:42:19,460 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:42:19,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 16:42:19,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-02-05 16:42:19,662 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-05 16:42:19,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:42:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash 974106934, now seen corresponding path program 1 times [2025-02-05 16:42:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:42:19,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657977423] [2025-02-05 16:42:19,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:42:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:42:19,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-05 16:42:19,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-05 16:42:19,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:42:19,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:42:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:42:19,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:42:19,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657977423] [2025-02-05 16:42:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657977423] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:42:19,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:42:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:42:19,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383220568] [2025-02-05 16:42:19,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:42:19,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:42:19,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:42:19,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:42:19,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:42:19,746 INFO L87 Difference]: Start difference. First operand 446300 states and 584597 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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)