./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c65c198ec72496bb5b04d5e41e47edaf1b306731824d389c2c0c2e76409cd0bf --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 15:04:21,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 15:04:21,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 15:04:21,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 15:04:21,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 15:04:21,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 15:04:21,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 15:04:21,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 15:04:21,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 15:04:21,766 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 15:04:21,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 15:04:21,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 15:04:21,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 15:04:21,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 15:04:21,767 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 15:04:21,767 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:04:21,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 15:04:21,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 15:04:21,768 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/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 -> c65c198ec72496bb5b04d5e41e47edaf1b306731824d389c2c0c2e76409cd0bf [2025-03-03 15:04:21,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 15:04:21,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 15:04:21,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 15:04:21,991 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 15:04:21,991 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 15:04:21,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:04:23,172 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbebabaad/5122e9b4006945b7a5f905ce22072ffc/FLAG76e889b83 [2025-03-03 15:04:23,578 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 15:04:23,578 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:04:23,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbebabaad/5122e9b4006945b7a5f905ce22072ffc/FLAG76e889b83 [2025-03-03 15:04:23,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbebabaad/5122e9b4006945b7a5f905ce22072ffc [2025-03-03 15:04:23,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 15:04:23,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 15:04:23,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 15:04:23,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 15:04:23,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 15:04:23,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:04:23" (1/1) ... [2025-03-03 15:04:23,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e134d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:23, skipping insertion in model container [2025-03-03 15:04:23,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:04:23" (1/1) ... [2025-03-03 15:04:23,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 15:04:24,184 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[50207,50220] [2025-03-03 15:04:24,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:04:24,367 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 15:04:24,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[50207,50220] [2025-03-03 15:04:24,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:04:24,800 INFO L204 MainTranslator]: Completed translation [2025-03-03 15:04:24,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24 WrapperNode [2025-03-03 15:04:24,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 15:04:24,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 15:04:24,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 15:04:24,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 15:04:24,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:24,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:24,942 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5008 [2025-03-03 15:04:24,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 15:04:24,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 15:04:24,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 15:04:24,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 15:04:24,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:24,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:24,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,025 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]. [2025-03-03 15:04:25,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 15:04:25,129 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 15:04:25,129 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 15:04:25,129 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 15:04:25,130 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (1/1) ... [2025-03-03 15:04:25,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:04:25,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 15:04:25,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 15:04:25,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 15:04:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 15:04:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 15:04:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 15:04:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 15:04:25,347 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 15:04:25,348 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 15:04:27,976 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3429: havoc main_~node5____CPAchecker_TMP_3~3#1;havoc main_~node5____CPAchecker_TMP_2~3#1;havoc main_~node5____CPAchecker_TMP_1~3#1;havoc main_~node5____CPAchecker_TMP_0~3#1; [2025-03-03 15:04:27,977 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2913: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1;havoc main_~node5____CPAchecker_TMP_3~2#1;havoc main_~node5____CPAchecker_TMP_2~2#1;havoc main_~node5____CPAchecker_TMP_1~2#1;havoc main_~node5____CPAchecker_TMP_0~2#1;havoc main_~node4____CPAchecker_TMP_3~2#1;havoc main_~node4____CPAchecker_TMP_2~2#1;havoc main_~node4____CPAchecker_TMP_1~2#1;havoc main_~node4____CPAchecker_TMP_0~2#1;havoc main_~node3____CPAchecker_TMP_3~2#1;havoc main_~node3____CPAchecker_TMP_2~2#1;havoc main_~node3____CPAchecker_TMP_1~2#1;havoc main_~node3____CPAchecker_TMP_0~2#1;havoc main_~node2____CPAchecker_TMP_3~2#1;havoc main_~node2____CPAchecker_TMP_2~2#1;havoc main_~node2____CPAchecker_TMP_1~2#1;havoc main_~node2____CPAchecker_TMP_0~2#1;havoc main_~node1____CPAchecker_TMP_3~2#1;havoc main_~node1____CPAchecker_TMP_2~2#1;havoc main_~node1____CPAchecker_TMP_1~2#1;havoc main_~node1____CPAchecker_TMP_0~2#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node5____CPAchecker_TMP_3~1#1;havoc main_~node5____CPAchecker_TMP_2~1#1;havoc main_~node5____CPAchecker_TMP_1~1#1;havoc main_~node5____CPAchecker_TMP_0~1#1;havoc main_~node4____CPAchecker_TMP_3~1#1;havoc main_~node4____CPAchecker_TMP_2~1#1;havoc main_~node4____CPAchecker_TMP_1~1#1;havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node3____CPAchecker_TMP_3~1#1;havoc main_~node3____CPAchecker_TMP_2~1#1;havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node2____CPAchecker_TMP_3~1#1;havoc main_~node2____CPAchecker_TMP_2~1#1;havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node1____CPAchecker_TMP_3~1#1;havoc main_~node1____CPAchecker_TMP_2~1#1;havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node5____CPAchecker_TMP_3~0#1;havoc main_~node5____CPAchecker_TMP_2~0#1;havoc main_~node5____CPAchecker_TMP_1~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1;havoc main_~node4____CPAchecker_TMP_3~0#1;havoc main_~node4____CPAchecker_TMP_2~0#1;havoc main_~node4____CPAchecker_TMP_1~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node3____CPAchecker_TMP_3~0#1;havoc main_~node3____CPAchecker_TMP_2~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node2____CPAchecker_TMP_3~0#1;havoc main_~node2____CPAchecker_TMP_2~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node1____CPAchecker_TMP_3~0#1;havoc main_~node1____CPAchecker_TMP_2~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r151~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r251~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r351~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r451~0#1, main_~init__r511~0#1, main_~init__r521~0#1, main_~init__r531~0#1, main_~init__r541~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r152~0#1, main_~init__tmp___2~0#1, main_~init__r212~0#1, main_~init__tmp___3~0#1, main_~init__r232~0#1, main_~init__tmp___4~0#1, main_~init__r242~0#1, main_~init__tmp___5~0#1, main_~init__r252~0#1, main_~init__tmp___6~0#1, main_~init__r312~0#1, main_~init__tmp___7~0#1, main_~init__r322~0#1, main_~init__tmp___8~0#1, main_~init__r342~0#1, main_~init__tmp___9~0#1, main_~init__r352~0#1, main_~init__tmp___10~0#1, main_~init__r412~0#1, main_~init__tmp___11~0#1, main_~init__r422~0#1, main_~init__tmp___12~0#1, main_~init__r432~0#1, main_~init__tmp___13~0#1, main_~init__r452~0#1, main_~init__tmp___14~0#1, main_~init__r512~0#1, main_~init__tmp___15~0#1, main_~init__r522~0#1, main_~init__tmp___16~0#1, main_~init__r532~0#1, main_~init__tmp___17~0#1, main_~init__r542~0#1, main_~init__tmp___18~0#1, main_~init__r123~0#1, main_~init__tmp___19~0#1, main_~init__r133~0#1, main_~init__tmp___20~0#1, main_~init__r143~0#1, main_~init__tmp___21~0#1, main_~init__r153~0#1, main_~init__tmp___22~0#1, main_~init__r213~0#1, main_~init__tmp___23~0#1, main_~init__r233~0#1, main_~init__tmp___24~0#1, main_~init__r243~0#1, main_~init__tmp___25~0#1, main_~init__r253~0#1, main_~init__tmp___26~0#1, main_~init__r313~0#1, main_~init__tmp___27~0#1, main_~init__r323~0#1, main_~init__tmp___28~0#1, main_~init__r343~0#1, main_~init__tmp___29~0#1, main_~init__r353~0#1, main_~init__tmp___30~0#1, main_~init__r413~0#1, main_~init__tmp___31~0#1, main_~init__r423~0#1, main_~init__tmp___32~0#1, main_~init__r433~0#1, main_~init__tmp___33~0#1, main_~init__r453~0#1, main_~init__tmp___34~0#1, main_~init__r513~0#1, main_~init__tmp___35~0#1, main_~init__r523~0#1, main_~init__tmp___36~0#1, main_~init__r533~0#1, main_~init__tmp___37~0#1, main_~init__r543~0#1, main_~init__tmp___38~0#1, main_~init__r124~0#1, main_~init__tmp___39~0#1, main_~init__r134~0#1, main_~init__tmp___40~0#1, main_~init__r144~0#1, main_~init__tmp___41~0#1, main_~init__r154~0#1, main_~init__tmp___42~0#1, main_~init__r214~0#1, main_~init__tmp___43~0#1, main_~init__r234~0#1, main_~init__tmp___44~0#1, main_~init__r244~0#1, main_~init__tmp___45~0#1, main_~init__r254~0#1, main_~init__tmp___46~0#1, main_~init__r314~0#1, main_~init__tmp___47~0#1, main_~init__r324~0#1, main_~init__tmp___48~0#1, main_~init__r344~0#1, main_~init__tmp___49~0#1, main_~init__r354~0#1, main_~init__tmp___50~0#1, main_~init__r414~0#1, main_~init__tmp___51~0#1, main_~init__r424~0#1, main_~init__tmp___52~0#1, main_~init__r434~0#1, main_~init__tmp___53~0#1, main_~init__r454~0#1, main_~init__tmp___54~0#1, main_~init__r514~0#1, main_~init__tmp___55~0#1, main_~init__r524~0#1, main_~init__tmp___56~0#1, main_~init__r534~0#1, main_~init__tmp___57~0#1, main_~init__r544~0#1, main_~init__tmp___58~0#1, main_~init__tmp___59~0#1; [2025-03-03 15:04:27,977 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3975: havoc main_~node2____CPAchecker_TMP_3~3#1;havoc main_~node2____CPAchecker_TMP_2~3#1;havoc main_~node2____CPAchecker_TMP_1~3#1;havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-03-03 15:04:27,977 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3205: havoc main_~check__tmp~6#1; [2025-03-03 15:04:27,978 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3611: havoc main_~node4____CPAchecker_TMP_3~3#1;havoc main_~node4____CPAchecker_TMP_2~3#1;havoc main_~node4____CPAchecker_TMP_1~3#1;havoc main_~node4____CPAchecker_TMP_0~3#1; [2025-03-03 15:04:27,978 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4157: havoc main_~node1____CPAchecker_TMP_3~3#1;havoc main_~node1____CPAchecker_TMP_2~3#1;havoc main_~node1____CPAchecker_TMP_1~3#1;havoc main_~node1____CPAchecker_TMP_0~3#1; [2025-03-03 15:04:27,978 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3793: havoc main_~node3____CPAchecker_TMP_3~3#1;havoc main_~node3____CPAchecker_TMP_2~3#1;havoc main_~node3____CPAchecker_TMP_1~3#1;havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-03-03 15:04:28,437 INFO L? ?]: Removed 337 outVars from TransFormulas that were not future-live. [2025-03-03 15:04:28,438 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 15:04:28,464 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 15:04:28,464 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 15:04:28,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:04:28 BoogieIcfgContainer [2025-03-03 15:04:28,469 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 15:04:28,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 15:04:28,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 15:04:28,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 15:04:28,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 03:04:23" (1/3) ... [2025-03-03 15:04:28,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:04:28, skipping insertion in model container [2025-03-03 15:04:28,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:04:24" (2/3) ... [2025-03-03 15:04:28,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:04:28, skipping insertion in model container [2025-03-03 15:04:28,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:04:28" (3/3) ... [2025-03-03 15:04:28,478 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:04:28,492 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 15:04:28,495 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 1335 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 15:04:28,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 15:04:28,582 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;@25126406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 15:04:28,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 15:04:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 1335 states, 1333 states have (on average 1.805701425356339) internal successors, (2407), 1334 states have internal predecessors, (2407), 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) [2025-03-03 15:04:28,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2025-03-03 15:04:28,627 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:28,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:28,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:28,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1119438039, now seen corresponding path program 1 times [2025-03-03 15:04:28,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:28,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080288239] [2025-03-03 15:04:28,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:28,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:28,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 472 statements into 1 equivalence classes. [2025-03-03 15:04:29,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 472 of 472 statements. [2025-03-03 15:04:29,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:29,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:30,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:30,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080288239] [2025-03-03 15:04:30,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080288239] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:30,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:30,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:04:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329508331] [2025-03-03 15:04:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:30,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:04:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:30,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:04:30,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:30,769 INFO L87 Difference]: Start difference. First operand has 1335 states, 1333 states have (on average 1.805701425356339) internal successors, (2407), 1334 states have internal predecessors, (2407), 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 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2025-03-03 15:04:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:31,103 INFO L93 Difference]: Finished difference Result 5176 states and 9337 transitions. [2025-03-03 15:04:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:04:31,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 472 [2025-03-03 15:04:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:31,130 INFO L225 Difference]: With dead ends: 5176 [2025-03-03 15:04:31,130 INFO L226 Difference]: Without dead ends: 3911 [2025-03-03 15:04:31,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:31,143 INFO L435 NwaCegarLoop]: 3698 mSDtfsCounter, 4518 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4518 SdHoareTripleChecker+Valid, 8308 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:31,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4518 Valid, 8308 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 15:04:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2025-03-03 15:04:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 2630. [2025-03-03 15:04:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2630 states, 2629 states have (on average 1.6409281095473565) internal successors, (4314), 2629 states have internal predecessors, (4314), 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) [2025-03-03 15:04:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2630 states to 2630 states and 4314 transitions. [2025-03-03 15:04:31,299 INFO L78 Accepts]: Start accepts. Automaton has 2630 states and 4314 transitions. Word has length 472 [2025-03-03 15:04:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:31,300 INFO L471 AbstractCegarLoop]: Abstraction has 2630 states and 4314 transitions. [2025-03-03 15:04:31,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2025-03-03 15:04:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2630 states and 4314 transitions. [2025-03-03 15:04:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2025-03-03 15:04:31,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:31,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:31,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 15:04:31,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:31,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:31,314 INFO L85 PathProgramCache]: Analyzing trace with hash 976046259, now seen corresponding path program 1 times [2025-03-03 15:04:31,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:31,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462082907] [2025-03-03 15:04:31,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:31,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 474 statements into 1 equivalence classes. [2025-03-03 15:04:31,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 474 of 474 statements. [2025-03-03 15:04:31,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:31,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462082907] [2025-03-03 15:04:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462082907] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:31,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:31,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:31,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100578232] [2025-03-03 15:04:31,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:31,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:31,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:31,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:31,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:31,805 INFO L87 Difference]: Start difference. First operand 2630 states and 4314 transitions. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2025-03-03 15:04:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:31,945 INFO L93 Difference]: Finished difference Result 7628 states and 12467 transitions. [2025-03-03 15:04:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 474 [2025-03-03 15:04:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:31,963 INFO L225 Difference]: With dead ends: 7628 [2025-03-03 15:04:31,963 INFO L226 Difference]: Without dead ends: 5208 [2025-03-03 15:04:31,967 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 [2025-03-03 15:04:31,968 INFO L435 NwaCegarLoop]: 4225 mSDtfsCounter, 1949 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 6350 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:31,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 6350 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2025-03-03 15:04:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5206. [2025-03-03 15:04:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 5205 states have (on average 1.6349663784822286) internal successors, (8510), 5205 states have internal predecessors, (8510), 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) [2025-03-03 15:04:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 8510 transitions. [2025-03-03 15:04:32,081 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 8510 transitions. Word has length 474 [2025-03-03 15:04:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:32,083 INFO L471 AbstractCegarLoop]: Abstraction has 5206 states and 8510 transitions. [2025-03-03 15:04:32,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2025-03-03 15:04:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 8510 transitions. [2025-03-03 15:04:32,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2025-03-03 15:04:32,095 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:32,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:32,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 15:04:32,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:32,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:32,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1295809239, now seen corresponding path program 1 times [2025-03-03 15:04:32,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:32,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897495136] [2025-03-03 15:04:32,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:32,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:32,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 475 statements into 1 equivalence classes. [2025-03-03 15:04:32,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 475 of 475 statements. [2025-03-03 15:04:32,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:32,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:32,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897495136] [2025-03-03 15:04:32,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897495136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:32,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:32,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:32,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137080365] [2025-03-03 15:04:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:32,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:32,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:32,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:32,418 INFO L87 Difference]: Start difference. First operand 5206 states and 8510 transitions. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2025-03-03 15:04:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:32,642 INFO L93 Difference]: Finished difference Result 15521 states and 25349 transitions. [2025-03-03 15:04:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 475 [2025-03-03 15:04:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:32,676 INFO L225 Difference]: With dead ends: 15521 [2025-03-03 15:04:32,676 INFO L226 Difference]: Without dead ends: 10363 [2025-03-03 15:04:32,684 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 [2025-03-03 15:04:32,686 INFO L435 NwaCegarLoop]: 4340 mSDtfsCounter, 2168 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 6512 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:32,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 6512 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2025-03-03 15:04:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5253. [2025-03-03 15:04:32,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 1.634996191926885) internal successors, (8587), 5252 states have internal predecessors, (8587), 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) [2025-03-03 15:04:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 8587 transitions. [2025-03-03 15:04:32,848 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 8587 transitions. Word has length 475 [2025-03-03 15:04:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:32,848 INFO L471 AbstractCegarLoop]: Abstraction has 5253 states and 8587 transitions. [2025-03-03 15:04:32,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2025-03-03 15:04:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 8587 transitions. [2025-03-03 15:04:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2025-03-03 15:04:32,862 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:32,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:32,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 15:04:32,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:32,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1872528241, now seen corresponding path program 1 times [2025-03-03 15:04:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:32,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517112264] [2025-03-03 15:04:32,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:32,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 476 statements into 1 equivalence classes. [2025-03-03 15:04:32,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 476 of 476 statements. [2025-03-03 15:04:32,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:32,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:33,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517112264] [2025-03-03 15:04:33,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517112264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:33,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:33,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:33,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616751289] [2025-03-03 15:04:33,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:33,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:33,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:33,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:33,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:33,153 INFO L87 Difference]: Start difference. First operand 5253 states and 8587 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2025-03-03 15:04:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:33,317 INFO L93 Difference]: Finished difference Result 15108 states and 24587 transitions. [2025-03-03 15:04:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 476 [2025-03-03 15:04:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:33,343 INFO L225 Difference]: With dead ends: 15108 [2025-03-03 15:04:33,343 INFO L226 Difference]: Without dead ends: 10250 [2025-03-03 15:04:33,352 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 [2025-03-03 15:04:33,352 INFO L435 NwaCegarLoop]: 4306 mSDtfsCounter, 1941 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 6431 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:33,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 6431 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2025-03-03 15:04:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 10248. [2025-03-03 15:04:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10248 states, 10247 states have (on average 1.6258417097687128) internal successors, (16660), 10247 states have internal predecessors, (16660), 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) [2025-03-03 15:04:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10248 states to 10248 states and 16660 transitions. [2025-03-03 15:04:33,554 INFO L78 Accepts]: Start accepts. Automaton has 10248 states and 16660 transitions. Word has length 476 [2025-03-03 15:04:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:33,554 INFO L471 AbstractCegarLoop]: Abstraction has 10248 states and 16660 transitions. [2025-03-03 15:04:33,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2025-03-03 15:04:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10248 states and 16660 transitions. [2025-03-03 15:04:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2025-03-03 15:04:33,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:33,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:33,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 15:04:33,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:33,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash -128840310, now seen corresponding path program 1 times [2025-03-03 15:04:33,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:33,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043854332] [2025-03-03 15:04:33,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:33,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 476 statements into 1 equivalence classes. [2025-03-03 15:04:33,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 476 of 476 statements. [2025-03-03 15:04:33,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:33,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:33,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:33,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043854332] [2025-03-03 15:04:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043854332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:33,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:33,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580172078] [2025-03-03 15:04:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:33,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:33,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:33,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:33,752 INFO L87 Difference]: Start difference. First operand 10248 states and 16660 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2025-03-03 15:04:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:33,922 INFO L93 Difference]: Finished difference Result 30496 states and 49529 transitions. [2025-03-03 15:04:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:33,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 476 [2025-03-03 15:04:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:33,963 INFO L225 Difference]: With dead ends: 30496 [2025-03-03 15:04:33,964 INFO L226 Difference]: Without dead ends: 20388 [2025-03-03 15:04:33,981 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 [2025-03-03 15:04:33,982 INFO L435 NwaCegarLoop]: 4344 mSDtfsCounter, 2167 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:33,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 6516 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20388 states. [2025-03-03 15:04:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20388 to 10346. [2025-03-03 15:04:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10346 states, 10345 states have (on average 1.625422909618173) internal successors, (16815), 10345 states have internal predecessors, (16815), 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) [2025-03-03 15:04:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 16815 transitions. [2025-03-03 15:04:34,279 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 16815 transitions. Word has length 476 [2025-03-03 15:04:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:34,279 INFO L471 AbstractCegarLoop]: Abstraction has 10346 states and 16815 transitions. [2025-03-03 15:04:34,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2025-03-03 15:04:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 16815 transitions. [2025-03-03 15:04:34,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2025-03-03 15:04:34,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:34,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:34,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 15:04:34,296 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1436526162, now seen corresponding path program 1 times [2025-03-03 15:04:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030555597] [2025-03-03 15:04:34,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:34,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:34,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 477 statements into 1 equivalence classes. [2025-03-03 15:04:34,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 477 of 477 statements. [2025-03-03 15:04:34,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:34,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:34,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030555597] [2025-03-03 15:04:34,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030555597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:34,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:34,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:34,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13622641] [2025-03-03 15:04:34,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:34,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:34,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:34,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:34,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:34,456 INFO L87 Difference]: Start difference. First operand 10346 states and 16815 transitions. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2025-03-03 15:04:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:34,557 INFO L93 Difference]: Finished difference Result 20589 states and 33423 transitions. [2025-03-03 15:04:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:34,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 477 [2025-03-03 15:04:34,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:34,575 INFO L225 Difference]: With dead ends: 20589 [2025-03-03 15:04:34,576 INFO L226 Difference]: Without dead ends: 10463 [2025-03-03 15:04:34,587 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 [2025-03-03 15:04:34,589 INFO L435 NwaCegarLoop]: 2216 mSDtfsCounter, 18 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:34,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4400 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:34,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2025-03-03 15:04:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2025-03-03 15:04:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 10462 states have (on average 1.6214872873255592) internal successors, (16964), 10462 states have internal predecessors, (16964), 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) [2025-03-03 15:04:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 16964 transitions. [2025-03-03 15:04:34,733 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 16964 transitions. Word has length 477 [2025-03-03 15:04:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:34,733 INFO L471 AbstractCegarLoop]: Abstraction has 10463 states and 16964 transitions. [2025-03-03 15:04:34,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2025-03-03 15:04:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 16964 transitions. [2025-03-03 15:04:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2025-03-03 15:04:34,747 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:34,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:34,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 15:04:34,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:34,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:34,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1666695596, now seen corresponding path program 1 times [2025-03-03 15:04:34,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:34,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59601582] [2025-03-03 15:04:34,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:34,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:34,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 478 statements into 1 equivalence classes. [2025-03-03 15:04:34,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 478 of 478 statements. [2025-03-03 15:04:34,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:34,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:34,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59601582] [2025-03-03 15:04:34,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59601582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:34,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771914594] [2025-03-03 15:04:34,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:34,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:34,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:34,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:34,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:34,999 INFO L87 Difference]: Start difference. First operand 10463 states and 16964 transitions. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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) [2025-03-03 15:04:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:35,148 INFO L93 Difference]: Finished difference Result 29714 states and 48016 transitions. [2025-03-03 15:04:35,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:35,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 478 [2025-03-03 15:04:35,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:35,183 INFO L225 Difference]: With dead ends: 29714 [2025-03-03 15:04:35,184 INFO L226 Difference]: Without dead ends: 20216 [2025-03-03 15:04:35,200 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 [2025-03-03 15:04:35,201 INFO L435 NwaCegarLoop]: 4306 mSDtfsCounter, 1934 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 6431 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:35,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 6431 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20216 states. [2025-03-03 15:04:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20216 to 20214. [2025-03-03 15:04:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20214 states, 20213 states have (on average 1.6131202691337259) internal successors, (32606), 20213 states have internal predecessors, (32606), 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) [2025-03-03 15:04:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20214 states to 20214 states and 32606 transitions. [2025-03-03 15:04:35,546 INFO L78 Accepts]: Start accepts. Automaton has 20214 states and 32606 transitions. Word has length 478 [2025-03-03 15:04:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:35,547 INFO L471 AbstractCegarLoop]: Abstraction has 20214 states and 32606 transitions. [2025-03-03 15:04:35,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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) [2025-03-03 15:04:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 20214 states and 32606 transitions. [2025-03-03 15:04:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2025-03-03 15:04:35,584 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:35,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:35,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 15:04:35,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:35,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1721456918, now seen corresponding path program 1 times [2025-03-03 15:04:35,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:35,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844701297] [2025-03-03 15:04:35,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:35,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:35,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 478 statements into 1 equivalence classes. [2025-03-03 15:04:35,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 478 of 478 statements. [2025-03-03 15:04:35,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:35,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:36,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:36,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844701297] [2025-03-03 15:04:36,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844701297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:36,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:36,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:04:36,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290652483] [2025-03-03 15:04:36,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:36,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:04:36,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:36,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:04:36,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:36,703 INFO L87 Difference]: Start difference. First operand 20214 states and 32606 transitions. Second operand has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 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) [2025-03-03 15:04:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:36,921 INFO L93 Difference]: Finished difference Result 56999 states and 91372 transitions. [2025-03-03 15:04:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:04:36,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 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 478 [2025-03-03 15:04:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:36,988 INFO L225 Difference]: With dead ends: 56999 [2025-03-03 15:04:36,988 INFO L226 Difference]: Without dead ends: 39061 [2025-03-03 15:04:37,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:37,020 INFO L435 NwaCegarLoop]: 3717 mSDtfsCounter, 2119 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 9609 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:37,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 9609 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39061 states. [2025-03-03 15:04:37,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39061 to 21507. [2025-03-03 15:04:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21507 states, 21506 states have (on average 1.6223379521993861) internal successors, (34890), 21506 states have internal predecessors, (34890), 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) [2025-03-03 15:04:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21507 states to 21507 states and 34890 transitions. [2025-03-03 15:04:37,454 INFO L78 Accepts]: Start accepts. Automaton has 21507 states and 34890 transitions. Word has length 478 [2025-03-03 15:04:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:37,455 INFO L471 AbstractCegarLoop]: Abstraction has 21507 states and 34890 transitions. [2025-03-03 15:04:37,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 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) [2025-03-03 15:04:37,455 INFO L276 IsEmpty]: Start isEmpty. Operand 21507 states and 34890 transitions. [2025-03-03 15:04:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2025-03-03 15:04:37,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:37,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:37,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 15:04:37,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:37,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1247966513, now seen corresponding path program 1 times [2025-03-03 15:04:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891339793] [2025-03-03 15:04:37,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:37,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:37,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 481 statements into 1 equivalence classes. [2025-03-03 15:04:37,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 481 of 481 statements. [2025-03-03 15:04:37,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:37,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:37,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891339793] [2025-03-03 15:04:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891339793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:37,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:37,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009528775] [2025-03-03 15:04:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:37,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:37,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:37,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:37,634 INFO L87 Difference]: Start difference. First operand 21507 states and 34890 transitions. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2025-03-03 15:04:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:37,785 INFO L93 Difference]: Finished difference Result 57466 states and 92055 transitions. [2025-03-03 15:04:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:37,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 481 [2025-03-03 15:04:37,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:37,848 INFO L225 Difference]: With dead ends: 57466 [2025-03-03 15:04:37,848 INFO L226 Difference]: Without dead ends: 39508 [2025-03-03 15:04:37,871 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 [2025-03-03 15:04:37,872 INFO L435 NwaCegarLoop]: 4040 mSDtfsCounter, 1868 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:37,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 6211 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:04:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39508 states. [2025-03-03 15:04:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39508 to 21954. [2025-03-03 15:04:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21954 states, 21953 states have (on average 1.6200519291213047) internal successors, (35565), 21953 states have internal predecessors, (35565), 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) [2025-03-03 15:04:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21954 states to 21954 states and 35565 transitions. [2025-03-03 15:04:38,240 INFO L78 Accepts]: Start accepts. Automaton has 21954 states and 35565 transitions. Word has length 481 [2025-03-03 15:04:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:38,240 INFO L471 AbstractCegarLoop]: Abstraction has 21954 states and 35565 transitions. [2025-03-03 15:04:38,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2025-03-03 15:04:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21954 states and 35565 transitions. [2025-03-03 15:04:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2025-03-03 15:04:38,260 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:38,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:38,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 15:04:38,260 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:38,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1480664803, now seen corresponding path program 1 times [2025-03-03 15:04:38,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:38,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924240832] [2025-03-03 15:04:38,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:38,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:38,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 482 statements into 1 equivalence classes. [2025-03-03 15:04:38,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 482 of 482 statements. [2025-03-03 15:04:38,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:38,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:38,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924240832] [2025-03-03 15:04:38,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924240832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:38,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:38,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431165343] [2025-03-03 15:04:38,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:38,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:38,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:38,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:38,406 INFO L87 Difference]: Start difference. First operand 21954 states and 35565 transitions. Second operand has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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) [2025-03-03 15:04:38,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:38,534 INFO L93 Difference]: Finished difference Result 58227 states and 93168 transitions. [2025-03-03 15:04:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:38,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 482 [2025-03-03 15:04:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:38,605 INFO L225 Difference]: With dead ends: 58227 [2025-03-03 15:04:38,605 INFO L226 Difference]: Without dead ends: 40155 [2025-03-03 15:04:38,630 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 [2025-03-03 15:04:38,631 INFO L435 NwaCegarLoop]: 4044 mSDtfsCounter, 1867 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 6215 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:38,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 6215 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:04:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40155 states. [2025-03-03 15:04:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40155 to 22601. [2025-03-03 15:04:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22601 states, 22600 states have (on average 1.6152654867256637) internal successors, (36505), 22600 states have internal predecessors, (36505), 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) [2025-03-03 15:04:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22601 states to 22601 states and 36505 transitions. [2025-03-03 15:04:39,081 INFO L78 Accepts]: Start accepts. Automaton has 22601 states and 36505 transitions. Word has length 482 [2025-03-03 15:04:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:39,082 INFO L471 AbstractCegarLoop]: Abstraction has 22601 states and 36505 transitions. [2025-03-03 15:04:39,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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) [2025-03-03 15:04:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 22601 states and 36505 transitions. [2025-03-03 15:04:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2025-03-03 15:04:39,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:39,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:39,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 15:04:39,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:39,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1076181007, now seen corresponding path program 1 times [2025-03-03 15:04:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:39,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449886280] [2025-03-03 15:04:39,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:39,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 483 statements into 1 equivalence classes. [2025-03-03 15:04:39,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 483 of 483 statements. [2025-03-03 15:04:39,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:39,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:39,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:39,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449886280] [2025-03-03 15:04:39,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449886280] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:39,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:39,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:39,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989016058] [2025-03-03 15:04:39,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:39,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:39,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:39,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:39,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:39,300 INFO L87 Difference]: Start difference. First operand 22601 states and 36505 transitions. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2025-03-03 15:04:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:39,414 INFO L93 Difference]: Finished difference Result 41585 states and 66503 transitions. [2025-03-03 15:04:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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 483 [2025-03-03 15:04:39,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:39,459 INFO L225 Difference]: With dead ends: 41585 [2025-03-03 15:04:39,459 INFO L226 Difference]: Without dead ends: 23455 [2025-03-03 15:04:39,477 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 [2025-03-03 15:04:39,478 INFO L435 NwaCegarLoop]: 2216 mSDtfsCounter, 18 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:39,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4399 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:04:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23455 states. [2025-03-03 15:04:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23455 to 23455. [2025-03-03 15:04:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23455 states, 23454 states have (on average 1.6017310480088685) internal successors, (37567), 23454 states have internal predecessors, (37567), 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) [2025-03-03 15:04:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23455 states to 23455 states and 37567 transitions. [2025-03-03 15:04:39,830 INFO L78 Accepts]: Start accepts. Automaton has 23455 states and 37567 transitions. Word has length 483 [2025-03-03 15:04:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:39,831 INFO L471 AbstractCegarLoop]: Abstraction has 23455 states and 37567 transitions. [2025-03-03 15:04:39,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2025-03-03 15:04:39,831 INFO L276 IsEmpty]: Start isEmpty. Operand 23455 states and 37567 transitions. [2025-03-03 15:04:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-03-03 15:04:39,858 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:39,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:39,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 15:04:39,859 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:39,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1639903755, now seen corresponding path program 1 times [2025-03-03 15:04:39,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:39,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119719769] [2025-03-03 15:04:39,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:39,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:39,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-03-03 15:04:40,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-03-03 15:04:40,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:40,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:42,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:42,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119719769] [2025-03-03 15:04:42,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119719769] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:42,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:42,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 15:04:42,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899557079] [2025-03-03 15:04:42,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:42,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 15:04:42,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:42,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 15:04:42,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2025-03-03 15:04:42,533 INFO L87 Difference]: Start difference. First operand 23455 states and 37567 transitions. Second operand has 17 states, 17 states have (on average 28.470588235294116) internal successors, (484), 17 states have internal predecessors, (484), 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) [2025-03-03 15:04:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:45,175 INFO L93 Difference]: Finished difference Result 54288 states and 86442 transitions. [2025-03-03 15:04:45,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-03 15:04:45,176 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 28.470588235294116) internal successors, (484), 17 states have internal predecessors, (484), 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 484 [2025-03-03 15:04:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:45,250 INFO L225 Difference]: With dead ends: 54288 [2025-03-03 15:04:45,250 INFO L226 Difference]: Without dead ends: 52358 [2025-03-03 15:04:45,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2025-03-03 15:04:45,272 INFO L435 NwaCegarLoop]: 3077 mSDtfsCounter, 18590 mSDsluCounter, 26797 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18590 SdHoareTripleChecker+Valid, 29874 SdHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:45,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18590 Valid, 29874 Invalid, 3217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-03 15:04:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52358 states. [2025-03-03 15:04:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52358 to 31075. [2025-03-03 15:04:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31075 states, 31074 states have (on average 1.5920383600437664) internal successors, (49471), 31074 states have internal predecessors, (49471), 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) [2025-03-03 15:04:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31075 states to 31075 states and 49471 transitions. [2025-03-03 15:04:45,743 INFO L78 Accepts]: Start accepts. Automaton has 31075 states and 49471 transitions. Word has length 484 [2025-03-03 15:04:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:45,744 INFO L471 AbstractCegarLoop]: Abstraction has 31075 states and 49471 transitions. [2025-03-03 15:04:45,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 28.470588235294116) internal successors, (484), 17 states have internal predecessors, (484), 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) [2025-03-03 15:04:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 31075 states and 49471 transitions. [2025-03-03 15:04:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-03-03 15:04:45,769 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:45,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:45,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 15:04:45,769 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:45,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash 610544457, now seen corresponding path program 1 times [2025-03-03 15:04:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232979011] [2025-03-03 15:04:45,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:45,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-03-03 15:04:46,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-03-03 15:04:46,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:46,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:47,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:47,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232979011] [2025-03-03 15:04:47,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232979011] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:47,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:47,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-03 15:04:47,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058116640] [2025-03-03 15:04:47,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:47,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-03 15:04:47,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:47,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-03 15:04:47,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-03 15:04:47,520 INFO L87 Difference]: Start difference. First operand 31075 states and 49471 transitions. Second operand has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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) [2025-03-03 15:04:49,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:49,001 INFO L93 Difference]: Finished difference Result 40743 states and 64568 transitions. [2025-03-03 15:04:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-03 15:04:49,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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 484 [2025-03-03 15:04:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:49,053 INFO L225 Difference]: With dead ends: 40743 [2025-03-03 15:04:49,053 INFO L226 Difference]: Without dead ends: 35669 [2025-03-03 15:04:49,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2025-03-03 15:04:49,071 INFO L435 NwaCegarLoop]: 2278 mSDtfsCounter, 12001 mSDsluCounter, 20717 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12001 SdHoareTripleChecker+Valid, 22995 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:49,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12001 Valid, 22995 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 15:04:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35669 states. [2025-03-03 15:04:49,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35669 to 26003. [2025-03-03 15:04:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26003 states, 26002 states have (on average 1.589223905853396) internal successors, (41323), 26002 states have internal predecessors, (41323), 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) [2025-03-03 15:04:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26003 states to 26003 states and 41323 transitions. [2025-03-03 15:04:49,640 INFO L78 Accepts]: Start accepts. Automaton has 26003 states and 41323 transitions. Word has length 484 [2025-03-03 15:04:49,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:49,641 INFO L471 AbstractCegarLoop]: Abstraction has 26003 states and 41323 transitions. [2025-03-03 15:04:49,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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) [2025-03-03 15:04:49,641 INFO L276 IsEmpty]: Start isEmpty. Operand 26003 states and 41323 transitions. [2025-03-03 15:04:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-03-03 15:04:49,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:49,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:49,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 15:04:49,675 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:49,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2050514121, now seen corresponding path program 1 times [2025-03-03 15:04:49,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:49,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436172157] [2025-03-03 15:04:49,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:49,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:49,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-03-03 15:04:50,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-03-03 15:04:50,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:50,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:51,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436172157] [2025-03-03 15:04:51,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436172157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:51,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:51,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-03 15:04:51,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333699818] [2025-03-03 15:04:51,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:51,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-03 15:04:51,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:51,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-03 15:04:51,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-03 15:04:51,408 INFO L87 Difference]: Start difference. First operand 26003 states and 41323 transitions. Second operand has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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) [2025-03-03 15:04:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:52,713 INFO L93 Difference]: Finished difference Result 38767 states and 61340 transitions. [2025-03-03 15:04:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-03 15:04:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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 484 [2025-03-03 15:04:52,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:52,758 INFO L225 Difference]: With dead ends: 38767 [2025-03-03 15:04:52,759 INFO L226 Difference]: Without dead ends: 36837 [2025-03-03 15:04:52,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2025-03-03 15:04:52,777 INFO L435 NwaCegarLoop]: 2278 mSDtfsCounter, 11048 mSDsluCounter, 20720 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11048 SdHoareTripleChecker+Valid, 22998 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:52,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11048 Valid, 22998 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-03 15:04:52,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36837 states. [2025-03-03 15:04:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36837 to 28663. [2025-03-03 15:04:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28663 states, 28662 states have (on average 1.5786407089526202) internal successors, (45247), 28662 states have internal predecessors, (45247), 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) [2025-03-03 15:04:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28663 states to 28663 states and 45247 transitions. [2025-03-03 15:04:53,228 INFO L78 Accepts]: Start accepts. Automaton has 28663 states and 45247 transitions. Word has length 484 [2025-03-03 15:04:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:53,228 INFO L471 AbstractCegarLoop]: Abstraction has 28663 states and 45247 transitions. [2025-03-03 15:04:53,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 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) [2025-03-03 15:04:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28663 states and 45247 transitions. [2025-03-03 15:04:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-03-03 15:04:53,252 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:53,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:53,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 15:04:53,253 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:53,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1021154823, now seen corresponding path program 1 times [2025-03-03 15:04:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:53,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589003672] [2025-03-03 15:04:53,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:53,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:53,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-03-03 15:04:53,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-03-03 15:04:53,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:53,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:53,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:53,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589003672] [2025-03-03 15:04:53,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589003672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:53,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:04:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466832973] [2025-03-03 15:04:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:53,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:04:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:53,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:04:53,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:53,997 INFO L87 Difference]: Start difference. First operand 28663 states and 45247 transitions. Second operand has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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) [2025-03-03 15:04:54,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:54,350 INFO L93 Difference]: Finished difference Result 111223 states and 175324 transitions. [2025-03-03 15:04:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:04:54,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 484 [2025-03-03 15:04:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:54,447 INFO L225 Difference]: With dead ends: 111223 [2025-03-03 15:04:54,447 INFO L226 Difference]: Without dead ends: 83273 [2025-03-03 15:04:54,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:04:54,491 INFO L435 NwaCegarLoop]: 3348 mSDtfsCounter, 4103 mSDsluCounter, 4181 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4103 SdHoareTripleChecker+Valid, 7529 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:54,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4103 Valid, 7529 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83273 states. [2025-03-03 15:04:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83273 to 56100. [2025-03-03 15:04:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56100 states, 56099 states have (on average 1.5705805807590154) internal successors, (88108), 56099 states have internal predecessors, (88108), 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) [2025-03-03 15:04:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56100 states to 56100 states and 88108 transitions. [2025-03-03 15:04:55,671 INFO L78 Accepts]: Start accepts. Automaton has 56100 states and 88108 transitions. Word has length 484 [2025-03-03 15:04:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:55,671 INFO L471 AbstractCegarLoop]: Abstraction has 56100 states and 88108 transitions. [2025-03-03 15:04:55,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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) [2025-03-03 15:04:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 56100 states and 88108 transitions. [2025-03-03 15:04:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-03-03 15:04:55,712 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:55,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:55,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 15:04:55,712 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:55,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:55,713 INFO L85 PathProgramCache]: Analyzing trace with hash -197769117, now seen corresponding path program 1 times [2025-03-03 15:04:55,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:55,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712570066] [2025-03-03 15:04:55,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:55,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:55,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-03-03 15:04:55,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-03-03 15:04:55,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:55,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:55,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712570066] [2025-03-03 15:04:55,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712570066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:55,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:55,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:55,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088703894] [2025-03-03 15:04:55,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:55,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:55,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:55,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:55,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:55,870 INFO L87 Difference]: Start difference. First operand 56100 states and 88108 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2025-03-03 15:04:56,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:56,325 INFO L93 Difference]: Finished difference Result 161772 states and 252983 transitions. [2025-03-03 15:04:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 486 [2025-03-03 15:04:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:56,475 INFO L225 Difference]: With dead ends: 161772 [2025-03-03 15:04:56,475 INFO L226 Difference]: Without dead ends: 109555 [2025-03-03 15:04:56,521 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 [2025-03-03 15:04:56,521 INFO L435 NwaCegarLoop]: 4245 mSDtfsCounter, 1932 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 6370 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:56,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 6370 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109555 states. [2025-03-03 15:04:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109555 to 109553. [2025-03-03 15:04:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109553 states, 109552 states have (on average 1.5613042208266394) internal successors, (171044), 109552 states have internal predecessors, (171044), 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) [2025-03-03 15:04:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109553 states to 109553 states and 171044 transitions. [2025-03-03 15:04:58,133 INFO L78 Accepts]: Start accepts. Automaton has 109553 states and 171044 transitions. Word has length 486 [2025-03-03 15:04:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:04:58,133 INFO L471 AbstractCegarLoop]: Abstraction has 109553 states and 171044 transitions. [2025-03-03 15:04:58,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2025-03-03 15:04:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand 109553 states and 171044 transitions. [2025-03-03 15:04:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-03-03 15:04:58,217 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:04:58,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:04:58,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 15:04:58,218 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:04:58,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:04:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 293878779, now seen corresponding path program 1 times [2025-03-03 15:04:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:04:58,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179054537] [2025-03-03 15:04:58,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:04:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:04:58,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-03-03 15:04:58,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-03-03 15:04:58,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:04:58,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:04:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:04:58,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:04:58,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179054537] [2025-03-03 15:04:58,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179054537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:04:58,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:04:58,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:04:58,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257765290] [2025-03-03 15:04:58,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:04:58,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:04:58,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:04:58,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:04:58,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:04:58,469 INFO L87 Difference]: Start difference. First operand 109553 states and 171044 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2025-03-03 15:04:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:59,208 INFO L93 Difference]: Finished difference Result 322684 states and 503304 transitions. [2025-03-03 15:04:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:04:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 486 [2025-03-03 15:04:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:59,456 INFO L225 Difference]: With dead ends: 322684 [2025-03-03 15:04:59,456 INFO L226 Difference]: Without dead ends: 215738 [2025-03-03 15:04:59,508 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 [2025-03-03 15:04:59,508 INFO L435 NwaCegarLoop]: 4248 mSDtfsCounter, 1916 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 6373 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:59,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 6373 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:04:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215738 states. [2025-03-03 15:05:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215738 to 215736. [2025-03-03 15:05:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215736 states, 215735 states have (on average 1.5545507219505412) internal successors, (335371), 215735 states have internal predecessors, (335371), 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) [2025-03-03 15:05:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215736 states to 215736 states and 335371 transitions. [2025-03-03 15:05:02,538 INFO L78 Accepts]: Start accepts. Automaton has 215736 states and 335371 transitions. Word has length 486 [2025-03-03 15:05:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:05:02,539 INFO L471 AbstractCegarLoop]: Abstraction has 215736 states and 335371 transitions. [2025-03-03 15:05:02,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2025-03-03 15:05:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 215736 states and 335371 transitions. [2025-03-03 15:05:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-03-03 15:05:02,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:05:02,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:05:02,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 15:05:02,741 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:05:02,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:05:02,743 INFO L85 PathProgramCache]: Analyzing trace with hash 303163864, now seen corresponding path program 1 times [2025-03-03 15:05:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:05:02,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139395168] [2025-03-03 15:05:02,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:05:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:05:02,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-03-03 15:05:02,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-03-03 15:05:02,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:05:02,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:05:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:05:02,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:05:02,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139395168] [2025-03-03 15:05:02,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139395168] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:05:02,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:05:02,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:05:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581297221] [2025-03-03 15:05:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:05:02,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:05:02,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:05:02,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:05:02,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:05:02,988 INFO L87 Difference]: Start difference. First operand 215736 states and 335371 transitions. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2025-03-03 15:05:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:05:04,570 INFO L93 Difference]: Finished difference Result 632675 states and 981370 transitions. [2025-03-03 15:05:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:05:04,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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 488 [2025-03-03 15:05:04,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:05:05,096 INFO L225 Difference]: With dead ends: 632675 [2025-03-03 15:05:05,096 INFO L226 Difference]: Without dead ends: 425123 [2025-03-03 15:05:05,220 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 [2025-03-03 15:05:05,221 INFO L435 NwaCegarLoop]: 4285 mSDtfsCounter, 1908 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 6410 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:05:05,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 6410 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:05:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425123 states. [2025-03-03 15:05:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425123 to 425121. [2025-03-03 15:05:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425121 states, 425120 states have (on average 1.5472690063981935) internal successors, (657775), 425120 states have internal predecessors, (657775), 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) [2025-03-03 15:05:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425121 states to 425121 states and 657775 transitions. [2025-03-03 15:05:11,474 INFO L78 Accepts]: Start accepts. Automaton has 425121 states and 657775 transitions. Word has length 488 [2025-03-03 15:05:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:05:11,475 INFO L471 AbstractCegarLoop]: Abstraction has 425121 states and 657775 transitions. [2025-03-03 15:05:11,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2025-03-03 15:05:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 425121 states and 657775 transitions. [2025-03-03 15:05:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-03-03 15:05:11,890 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:05:11,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:05:11,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 15:05:11,890 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:05:11,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:05:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 9306134, now seen corresponding path program 1 times [2025-03-03 15:05:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:05:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126141575] [2025-03-03 15:05:11,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:05:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:05:12,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-03-03 15:05:12,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-03-03 15:05:12,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:05:12,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:05:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:05:12,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:05:12,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126141575] [2025-03-03 15:05:12,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126141575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:05:12,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:05:12,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:05:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502315745] [2025-03-03 15:05:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:05:12,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:05:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:05:12,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:05:12,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:05:12,989 INFO L87 Difference]: Start difference. First operand 425121 states and 657775 transitions. Second operand has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2025-03-03 15:05:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:05:16,106 INFO L93 Difference]: Finished difference Result 1094885 states and 1674663 transitions. [2025-03-03 15:05:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:05:16,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 488 [2025-03-03 15:05:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:05:17,159 INFO L225 Difference]: With dead ends: 1094885 [2025-03-03 15:05:17,159 INFO L226 Difference]: Without dead ends: 780387 [2025-03-03 15:05:17,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:05:17,400 INFO L435 NwaCegarLoop]: 4020 mSDtfsCounter, 1819 mSDsluCounter, 6195 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 10215 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:05:17,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1819 Valid, 10215 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:05:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780387 states.