./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-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 082788b8667c50bd3e0a9a9de40a828ff2faa3f29207aaeb43f492e193807c1e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:33:47,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:33:47,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:33:47,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:33:47,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:33:47,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:33:47,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:33:47,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:33:47,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:33:47,325 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:33:47,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:33:47,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:33:47,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:33:47,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:33:47,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:33:47,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:33:47,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:33:47,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:33:47,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:33:47,328 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 -> 082788b8667c50bd3e0a9a9de40a828ff2faa3f29207aaeb43f492e193807c1e [2025-03-08 06:33:47,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:33:47,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:33:47,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:33:47,574 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:33:47,575 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:33:47,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2025-03-08 06:33:48,745 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647bfb619/69fef80301f24cfa8d6c362fb8991b53/FLAGf9758dd74 [2025-03-08 06:33:49,132 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:33:49,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2025-03-08 06:33:49,153 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647bfb619/69fef80301f24cfa8d6c362fb8991b53/FLAGf9758dd74 [2025-03-08 06:33:49,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647bfb619/69fef80301f24cfa8d6c362fb8991b53 [2025-03-08 06:33:49,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:33:49,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:33:49,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:33:49,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:33:49,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:33:49,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deeaa03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49, skipping insertion in model container [2025-03-08 06:33:49,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:33:49,517 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[23088,23101] [2025-03-08 06:33:49,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:33:49,631 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:33:49,705 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_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[23088,23101] [2025-03-08 06:33:49,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:33:49,778 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:33:49,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49 WrapperNode [2025-03-08 06:33:49,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:33:49,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:33:49,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:33:49,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:33:49,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,874 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3003 [2025-03-08 06:33:49,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:33:49,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:33:49,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:33:49,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:33:49,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,941 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]. [2025-03-08 06:33:49,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,960 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:49,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:50,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:33:50,004 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:33:50,004 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:33:50,004 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:33:50,005 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (1/1) ... [2025-03-08 06:33:50,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:33:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:33:50,032 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) [2025-03-08 06:33:50,034 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 [2025-03-08 06:33:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:33:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:33:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:33:50,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:33:50,223 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:33:50,224 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:33:51,907 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1423: 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; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1027: havoc main_~node4__newmax~0#1; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L972: havoc main_~node3__newmax~0#1; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1633: 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; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L917: havoc main_~node2__newmax~0#1; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1843: 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; [2025-03-08 06:33:51,908 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L862: havoc main_~node1__newmax~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; [2025-03-08 06:33:51,909 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2053: 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; [2025-03-08 06:33:51,909 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2263: 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; [2025-03-08 06:33:51,909 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~node5__newmax~0#1; [2025-03-08 06:33:51,909 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1215: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2025-03-08 06:33:52,269 INFO L? ?]: Removed 256 outVars from TransFormulas that were not future-live. [2025-03-08 06:33:52,269 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:33:52,294 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:33:52,294 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:33:52,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:33:52 BoogieIcfgContainer [2025-03-08 06:33:52,295 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:33:52,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:33:52,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:33:52,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:33:52,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:33:49" (1/3) ... [2025-03-08 06:33:52,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a01bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:33:52, skipping insertion in model container [2025-03-08 06:33:52,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:33:49" (2/3) ... [2025-03-08 06:33:52,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a01bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:33:52, skipping insertion in model container [2025-03-08 06:33:52,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:33:52" (3/3) ... [2025-03-08 06:33:52,304 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2025-03-08 06:33:52,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:33:52,318 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c that has 1 procedures, 780 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 06:33:52,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:33:52,404 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;@9b33c87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:33:52,404 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:33:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 780 states, 778 states have (on average 1.8316195372750643) internal successors, (1425), 779 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2025-03-08 06:33:52,431 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:52,432 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] [2025-03-08 06:33:52,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:52,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:52,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2099325622, now seen corresponding path program 1 times [2025-03-08 06:33:52,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:52,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120238745] [2025-03-08 06:33:52,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:52,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:52,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-03-08 06:33:52,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-03-08 06:33:52,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:52,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:53,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:53,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120238745] [2025-03-08 06:33:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120238745] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:53,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:53,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:33:53,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053842644] [2025-03-08 06:33:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:53,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:33:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:53,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:33:53,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:33:53,334 INFO L87 Difference]: Start difference. First operand has 780 states, 778 states have (on average 1.8316195372750643) internal successors, (1425), 779 states have internal predecessors, (1425), 0 states have call successors, (0), 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 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:53,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:53,467 INFO L93 Difference]: Finished difference Result 1230 states and 2181 transitions. [2025-03-08 06:33:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:33:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2025-03-08 06:33:53,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:53,487 INFO L225 Difference]: With dead ends: 1230 [2025-03-08 06:33:53,487 INFO L226 Difference]: Without dead ends: 992 [2025-03-08 06:33:53,491 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 [2025-03-08 06:33:53,493 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 405 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:53,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 2724 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:33:53,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2025-03-08 06:33:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 989. [2025-03-08 06:33:53,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 988 states have (on average 1.7307692307692308) internal successors, (1710), 988 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1710 transitions. [2025-03-08 06:33:53,569 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1710 transitions. Word has length 213 [2025-03-08 06:33:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:53,571 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1710 transitions. [2025-03-08 06:33:53,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1710 transitions. [2025-03-08 06:33:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-08 06:33:53,578 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:53,578 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] [2025-03-08 06:33:53,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:33:53,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:53,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash 976193131, now seen corresponding path program 1 times [2025-03-08 06:33:53,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:53,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925798309] [2025-03-08 06:33:53,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:53,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:53,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-03-08 06:33:53,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-03-08 06:33:53,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:53,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:53,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:53,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925798309] [2025-03-08 06:33:53,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925798309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:53,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:53,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:33:53,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131341572] [2025-03-08 06:33:53,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:53,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:33:53,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:53,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:33:53,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:33:53,938 INFO L87 Difference]: Start difference. First operand 989 states and 1710 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:53,984 INFO L93 Difference]: Finished difference Result 1847 states and 3150 transitions. [2025-03-08 06:33:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:33:53,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2025-03-08 06:33:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:53,992 INFO L225 Difference]: With dead ends: 1847 [2025-03-08 06:33:53,993 INFO L226 Difference]: Without dead ends: 1406 [2025-03-08 06:33:53,996 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 [2025-03-08 06:33:53,997 INFO L435 NwaCegarLoop]: 1353 mSDtfsCounter, 353 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2650 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:53,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 2650 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:33:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2025-03-08 06:33:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1402. [2025-03-08 06:33:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 1.713775874375446) internal successors, (2401), 1401 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2401 transitions. [2025-03-08 06:33:54,043 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2401 transitions. Word has length 217 [2025-03-08 06:33:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:54,044 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 2401 transitions. [2025-03-08 06:33:54,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2401 transitions. [2025-03-08 06:33:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-03-08 06:33:54,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:54,051 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] [2025-03-08 06:33:54,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:33:54,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:54,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash 751823564, now seen corresponding path program 1 times [2025-03-08 06:33:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427228018] [2025-03-08 06:33:54,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:54,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:54,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-03-08 06:33:54,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-03-08 06:33:54,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:54,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:54,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427228018] [2025-03-08 06:33:54,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427228018] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:54,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:54,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:33:54,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718952359] [2025-03-08 06:33:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:54,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:33:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:54,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:33:54,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:33:54,351 INFO L87 Difference]: Start difference. First operand 1402 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:54,405 INFO L93 Difference]: Finished difference Result 3062 states and 5179 transitions. [2025-03-08 06:33:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:33:54,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2025-03-08 06:33:54,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:54,414 INFO L225 Difference]: With dead ends: 3062 [2025-03-08 06:33:54,414 INFO L226 Difference]: Without dead ends: 2208 [2025-03-08 06:33:54,416 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 [2025-03-08 06:33:54,416 INFO L435 NwaCegarLoop]: 1353 mSDtfsCounter, 345 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:54,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 2651 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:33:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2025-03-08 06:33:54,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2202. [2025-03-08 06:33:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 1.696047251249432) internal successors, (3733), 2201 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 3733 transitions. [2025-03-08 06:33:54,463 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 3733 transitions. Word has length 221 [2025-03-08 06:33:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:54,463 INFO L471 AbstractCegarLoop]: Abstraction has 2202 states and 3733 transitions. [2025-03-08 06:33:54,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 3733 transitions. [2025-03-08 06:33:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-08 06:33:54,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:54,466 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] [2025-03-08 06:33:54,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:33:54,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:54,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash -517979539, now seen corresponding path program 1 times [2025-03-08 06:33:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:54,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360530737] [2025-03-08 06:33:54,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:54,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:54,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-08 06:33:54,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-08 06:33:54,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:54,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:54,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:54,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360530737] [2025-03-08 06:33:54,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360530737] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:54,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:54,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:33:54,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937677875] [2025-03-08 06:33:54,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:54,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:33:54,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:54,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:33:54,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:33:54,744 INFO L87 Difference]: Start difference. First operand 2202 states and 3733 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:54,810 INFO L93 Difference]: Finished difference Result 5414 states and 9087 transitions. [2025-03-08 06:33:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:33:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2025-03-08 06:33:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:54,822 INFO L225 Difference]: With dead ends: 5414 [2025-03-08 06:33:54,822 INFO L226 Difference]: Without dead ends: 3760 [2025-03-08 06:33:54,827 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 [2025-03-08 06:33:54,827 INFO L435 NwaCegarLoop]: 1353 mSDtfsCounter, 337 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:54,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 2652 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:33:54,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2025-03-08 06:33:54,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3750. [2025-03-08 06:33:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 3749 states have (on average 1.6796479061082956) internal successors, (6297), 3749 states have internal predecessors, (6297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 6297 transitions. [2025-03-08 06:33:54,918 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 6297 transitions. Word has length 225 [2025-03-08 06:33:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:54,918 INFO L471 AbstractCegarLoop]: Abstraction has 3750 states and 6297 transitions. [2025-03-08 06:33:54,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 6297 transitions. [2025-03-08 06:33:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-03-08 06:33:54,923 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:54,924 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] [2025-03-08 06:33:54,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:33:54,924 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:54,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1001337522, now seen corresponding path program 1 times [2025-03-08 06:33:54,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:54,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143752771] [2025-03-08 06:33:54,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:54,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:54,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-03-08 06:33:55,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-03-08 06:33:55,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:55,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:55,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:55,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143752771] [2025-03-08 06:33:55,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143752771] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:55,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:55,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:33:55,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593521867] [2025-03-08 06:33:55,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:55,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:33:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:55,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:33:55,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:33:55,240 INFO L87 Difference]: Start difference. First operand 3750 states and 6297 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:55,404 INFO L93 Difference]: Finished difference Result 9962 states and 16603 transitions. [2025-03-08 06:33:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:33:55,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2025-03-08 06:33:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:55,428 INFO L225 Difference]: With dead ends: 9962 [2025-03-08 06:33:55,465 INFO L226 Difference]: Without dead ends: 6760 [2025-03-08 06:33:55,468 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 [2025-03-08 06:33:55,470 INFO L435 NwaCegarLoop]: 1353 mSDtfsCounter, 329 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:55,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 2653 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:33:55,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2025-03-08 06:33:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 6742. [2025-03-08 06:33:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6742 states, 6741 states have (on average 1.665183207239282) internal successors, (11225), 6741 states have internal predecessors, (11225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 11225 transitions. [2025-03-08 06:33:55,598 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 11225 transitions. Word has length 229 [2025-03-08 06:33:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:55,600 INFO L471 AbstractCegarLoop]: Abstraction has 6742 states and 11225 transitions. [2025-03-08 06:33:55,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 11225 transitions. [2025-03-08 06:33:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-03-08 06:33:55,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:55,604 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] [2025-03-08 06:33:55,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:33:55,604 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:55,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash 979487599, now seen corresponding path program 1 times [2025-03-08 06:33:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:55,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382423197] [2025-03-08 06:33:55,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:55,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:55,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-03-08 06:33:55,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-03-08 06:33:55,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:55,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:55,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:55,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382423197] [2025-03-08 06:33:55,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382423197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:55,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:55,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 06:33:55,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030977836] [2025-03-08 06:33:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:55,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 06:33:55,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:55,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 06:33:55,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:33:55,950 INFO L87 Difference]: Start difference. First operand 6742 states and 11225 transitions. Second operand has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:56,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:56,606 INFO L93 Difference]: Finished difference Result 41658 states and 69411 transitions. [2025-03-08 06:33:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 06:33:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2025-03-08 06:33:56,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:56,701 INFO L225 Difference]: With dead ends: 41658 [2025-03-08 06:33:56,701 INFO L226 Difference]: Without dead ends: 35464 [2025-03-08 06:33:56,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:33:56,726 INFO L435 NwaCegarLoop]: 1372 mSDtfsCounter, 4140 mSDsluCounter, 13637 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 15009 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:56,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4140 Valid, 15009 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:33:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35464 states. [2025-03-08 06:33:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35464 to 12714. [2025-03-08 06:33:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12714 states, 12713 states have (on average 1.6600330370486902) internal successors, (21104), 12713 states have internal predecessors, (21104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12714 states to 12714 states and 21104 transitions. [2025-03-08 06:33:57,219 INFO L78 Accepts]: Start accepts. Automaton has 12714 states and 21104 transitions. Word has length 233 [2025-03-08 06:33:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:57,220 INFO L471 AbstractCegarLoop]: Abstraction has 12714 states and 21104 transitions. [2025-03-08 06:33:57,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 12714 states and 21104 transitions. [2025-03-08 06:33:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-03-08 06:33:57,225 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:57,225 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] [2025-03-08 06:33:57,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:33:57,225 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:57,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash 301402071, now seen corresponding path program 1 times [2025-03-08 06:33:57,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:57,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680652174] [2025-03-08 06:33:57,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:57,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:57,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-03-08 06:33:57,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-03-08 06:33:57,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:57,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:57,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:57,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680652174] [2025-03-08 06:33:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680652174] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:57,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:57,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:33:57,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034537869] [2025-03-08 06:33:57,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:57,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:33:57,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:57,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:33:57,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:33:57,519 INFO L87 Difference]: Start difference. First operand 12714 states and 21104 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:57,789 INFO L93 Difference]: Finished difference Result 37398 states and 62172 transitions. [2025-03-08 06:33:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:33:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2025-03-08 06:33:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:57,838 INFO L225 Difference]: With dead ends: 37398 [2025-03-08 06:33:57,838 INFO L226 Difference]: Without dead ends: 25232 [2025-03-08 06:33:57,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:33:57,861 INFO L435 NwaCegarLoop]: 1359 mSDtfsCounter, 1130 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:57,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4380 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:33:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25232 states. [2025-03-08 06:33:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25232 to 18940. [2025-03-08 06:33:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18940 states, 18939 states have (on average 1.6603305348751254) internal successors, (31445), 18939 states have internal predecessors, (31445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18940 states to 18940 states and 31445 transitions. [2025-03-08 06:33:58,391 INFO L78 Accepts]: Start accepts. Automaton has 18940 states and 31445 transitions. Word has length 234 [2025-03-08 06:33:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:58,392 INFO L471 AbstractCegarLoop]: Abstraction has 18940 states and 31445 transitions. [2025-03-08 06:33:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 18940 states and 31445 transitions. [2025-03-08 06:33:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2025-03-08 06:33:58,400 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:58,401 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] [2025-03-08 06:33:58,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:33:58,401 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:58,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:58,402 INFO L85 PathProgramCache]: Analyzing trace with hash 755497810, now seen corresponding path program 1 times [2025-03-08 06:33:58,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:58,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581314774] [2025-03-08 06:33:58,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:58,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:58,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 235 statements into 1 equivalence classes. [2025-03-08 06:33:58,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 235 of 235 statements. [2025-03-08 06:33:58,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:58,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581314774] [2025-03-08 06:33:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581314774] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:58,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:33:58,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999890057] [2025-03-08 06:33:58,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:58,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:33:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:58,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:33:58,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:33:58,621 INFO L87 Difference]: Start difference. First operand 18940 states and 31445 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:58,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:58,819 INFO L93 Difference]: Finished difference Result 55968 states and 92968 transitions. [2025-03-08 06:33:58,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:33:58,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2025-03-08 06:33:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:33:58,891 INFO L225 Difference]: With dead ends: 55968 [2025-03-08 06:33:58,891 INFO L226 Difference]: Without dead ends: 37576 [2025-03-08 06:33:58,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:33:58,926 INFO L435 NwaCegarLoop]: 1344 mSDtfsCounter, 1130 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:33:58,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4142 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:33:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37576 states. [2025-03-08 06:33:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37576 to 28210. [2025-03-08 06:33:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28210 states, 28209 states have (on average 1.658442341096813) internal successors, (46783), 28209 states have internal predecessors, (46783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28210 states to 28210 states and 46783 transitions. [2025-03-08 06:33:59,412 INFO L78 Accepts]: Start accepts. Automaton has 28210 states and 46783 transitions. Word has length 235 [2025-03-08 06:33:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:33:59,413 INFO L471 AbstractCegarLoop]: Abstraction has 28210 states and 46783 transitions. [2025-03-08 06:33:59,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 28210 states and 46783 transitions. [2025-03-08 06:33:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-03-08 06:33:59,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:33:59,422 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] [2025-03-08 06:33:59,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:33:59,422 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:33:59,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:33:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1947474458, now seen corresponding path program 1 times [2025-03-08 06:33:59,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:33:59,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040288712] [2025-03-08 06:33:59,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:33:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:33:59,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-03-08 06:33:59,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-03-08 06:33:59,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:33:59,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:33:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:33:59,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:33:59,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040288712] [2025-03-08 06:33:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040288712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:33:59,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:33:59,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:33:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141820117] [2025-03-08 06:33:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:33:59,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:33:59,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:33:59,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:33:59,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:33:59,691 INFO L87 Difference]: Start difference. First operand 28210 states and 46783 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:33:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:33:59,966 INFO L93 Difference]: Finished difference Result 83684 states and 138908 transitions. [2025-03-08 06:33:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:33:59,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2025-03-08 06:33:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:00,193 INFO L225 Difference]: With dead ends: 83684 [2025-03-08 06:34:00,193 INFO L226 Difference]: Without dead ends: 56022 [2025-03-08 06:34:00,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:34:00,220 INFO L435 NwaCegarLoop]: 1345 mSDtfsCounter, 1128 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:00,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 4370 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:34:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56022 states. [2025-03-08 06:34:00,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56022 to 42046. [2025-03-08 06:34:00,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42046 states, 42045 states have (on average 1.656915209894161) internal successors, (69665), 42045 states have internal predecessors, (69665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:00,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42046 states to 42046 states and 69665 transitions. [2025-03-08 06:34:00,907 INFO L78 Accepts]: Start accepts. Automaton has 42046 states and 69665 transitions. Word has length 236 [2025-03-08 06:34:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:00,907 INFO L471 AbstractCegarLoop]: Abstraction has 42046 states and 69665 transitions. [2025-03-08 06:34:00,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 42046 states and 69665 transitions. [2025-03-08 06:34:00,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:00,921 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:00,921 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] [2025-03-08 06:34:00,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:34:00,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:00,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1644290045, now seen corresponding path program 1 times [2025-03-08 06:34:00,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:00,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802898295] [2025-03-08 06:34:00,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:00,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:00,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:01,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:01,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:01,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:01,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:01,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802898295] [2025-03-08 06:34:01,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802898295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:01,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:01,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:34:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062063871] [2025-03-08 06:34:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:01,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:34:01,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:01,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:34:01,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:34:01,123 INFO L87 Difference]: Start difference. First operand 42046 states and 69665 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:01,507 INFO L93 Difference]: Finished difference Result 93833 states and 155815 transitions. [2025-03-08 06:34:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:34:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:01,606 INFO L225 Difference]: With dead ends: 93833 [2025-03-08 06:34:01,606 INFO L226 Difference]: Without dead ends: 65174 [2025-03-08 06:34:01,648 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 [2025-03-08 06:34:01,649 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 360 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:01,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2960 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:34:01,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65174 states. [2025-03-08 06:34:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65174 to 65172. [2025-03-08 06:34:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65172 states, 65171 states have (on average 1.6557517914409783) internal successors, (107907), 65171 states have internal predecessors, (107907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65172 states to 65172 states and 107907 transitions. [2025-03-08 06:34:02,438 INFO L78 Accepts]: Start accepts. Automaton has 65172 states and 107907 transitions. Word has length 237 [2025-03-08 06:34:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:02,439 INFO L471 AbstractCegarLoop]: Abstraction has 65172 states and 107907 transitions. [2025-03-08 06:34:02,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:02,439 INFO L276 IsEmpty]: Start isEmpty. Operand 65172 states and 107907 transitions. [2025-03-08 06:34:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:02,444 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:02,445 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] [2025-03-08 06:34:02,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 06:34:02,445 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:02,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:02,445 INFO L85 PathProgramCache]: Analyzing trace with hash 823684803, now seen corresponding path program 1 times [2025-03-08 06:34:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:02,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757940601] [2025-03-08 06:34:02,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:02,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:02,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:02,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:02,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:02,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:02,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757940601] [2025-03-08 06:34:02,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757940601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:02,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:02,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:34:02,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531448787] [2025-03-08 06:34:02,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:02,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:34:02,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:02,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:34:02,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:34:02,696 INFO L87 Difference]: Start difference. First operand 65172 states and 107907 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:03,021 INFO L93 Difference]: Finished difference Result 144715 states and 239717 transitions. [2025-03-08 06:34:03,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:34:03,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:03,429 INFO L225 Difference]: With dead ends: 144715 [2025-03-08 06:34:03,429 INFO L226 Difference]: Without dead ends: 100334 [2025-03-08 06:34:03,473 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 [2025-03-08 06:34:03,475 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 352 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:03,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 2925 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:34:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100334 states. [2025-03-08 06:34:04,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100334 to 100332. [2025-03-08 06:34:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100332 states, 100331 states have (on average 1.6520915768805255) internal successors, (165756), 100331 states have internal predecessors, (165756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100332 states to 100332 states and 165756 transitions. [2025-03-08 06:34:04,852 INFO L78 Accepts]: Start accepts. Automaton has 100332 states and 165756 transitions. Word has length 237 [2025-03-08 06:34:04,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:04,853 INFO L471 AbstractCegarLoop]: Abstraction has 100332 states and 165756 transitions. [2025-03-08 06:34:04,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 100332 states and 165756 transitions. [2025-03-08 06:34:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:04,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:04,855 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] [2025-03-08 06:34:04,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:34:04,855 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:04,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1473084803, now seen corresponding path program 1 times [2025-03-08 06:34:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030370259] [2025-03-08 06:34:04,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:04,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:04,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:04,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:04,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:04,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:05,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:05,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030370259] [2025-03-08 06:34:05,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030370259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:05,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:05,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:34:05,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314084367] [2025-03-08 06:34:05,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:05,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:34:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:05,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:34:05,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:34:05,124 INFO L87 Difference]: Start difference. First operand 100332 states and 165756 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:05,847 INFO L93 Difference]: Finished difference Result 222080 states and 367092 transitions. [2025-03-08 06:34:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:34:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:06,158 INFO L225 Difference]: With dead ends: 222080 [2025-03-08 06:34:06,159 INFO L226 Difference]: Without dead ends: 153495 [2025-03-08 06:34:06,216 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 [2025-03-08 06:34:06,218 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 344 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:06,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 2882 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:34:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153495 states. [2025-03-08 06:34:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153495 to 153493. [2025-03-08 06:34:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153493 states, 153492 states have (on average 1.6479686237719229) internal successors, (252950), 153492 states have internal predecessors, (252950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153493 states to 153493 states and 252950 transitions. [2025-03-08 06:34:08,426 INFO L78 Accepts]: Start accepts. Automaton has 153493 states and 252950 transitions. Word has length 237 [2025-03-08 06:34:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:08,427 INFO L471 AbstractCegarLoop]: Abstraction has 153493 states and 252950 transitions. [2025-03-08 06:34:08,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 153493 states and 252950 transitions. [2025-03-08 06:34:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:08,428 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:08,428 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] [2025-03-08 06:34:08,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:34:08,428 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:08,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1157113085, now seen corresponding path program 1 times [2025-03-08 06:34:08,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:08,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081911271] [2025-03-08 06:34:08,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:08,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:08,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:08,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:08,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081911271] [2025-03-08 06:34:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081911271] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:34:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953290104] [2025-03-08 06:34:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:08,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:34:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:08,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:34:08,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:34:08,718 INFO L87 Difference]: Start difference. First operand 153493 states and 252950 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:09,541 INFO L93 Difference]: Finished difference Result 296875 states and 489776 transitions. [2025-03-08 06:34:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:34:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:10,081 INFO L225 Difference]: With dead ends: 296875 [2025-03-08 06:34:10,081 INFO L226 Difference]: Without dead ends: 215220 [2025-03-08 06:34:10,127 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 [2025-03-08 06:34:10,127 INFO L435 NwaCegarLoop]: 1471 mSDtfsCounter, 328 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:10,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 2772 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:34:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215220 states. [2025-03-08 06:34:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215220 to 215218. [2025-03-08 06:34:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215218 states, 215217 states have (on average 1.6444704646937742) internal successors, (353918), 215217 states have internal predecessors, (353918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215218 states to 215218 states and 353918 transitions. [2025-03-08 06:34:12,991 INFO L78 Accepts]: Start accepts. Automaton has 215218 states and 353918 transitions. Word has length 237 [2025-03-08 06:34:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:12,991 INFO L471 AbstractCegarLoop]: Abstraction has 215218 states and 353918 transitions. [2025-03-08 06:34:12,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 215218 states and 353918 transitions. [2025-03-08 06:34:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:12,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:12,993 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] [2025-03-08 06:34:12,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:34:12,994 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:12,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash 243955509, now seen corresponding path program 1 times [2025-03-08 06:34:12,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:12,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702624973] [2025-03-08 06:34:12,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:12,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:13,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:13,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:13,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:13,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:13,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:13,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702624973] [2025-03-08 06:34:13,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702624973] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:13,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:13,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:34:13,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075263040] [2025-03-08 06:34:13,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:13,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:34:13,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:13,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:34:13,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:34:13,283 INFO L87 Difference]: Start difference. First operand 215218 states and 353918 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:15,752 INFO L93 Difference]: Finished difference Result 649430 states and 1070497 transitions. [2025-03-08 06:34:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:34:15,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:16,531 INFO L225 Difference]: With dead ends: 649430 [2025-03-08 06:34:16,531 INFO L226 Difference]: Without dead ends: 434893 [2025-03-08 06:34:16,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:34:16,645 INFO L435 NwaCegarLoop]: 1515 mSDtfsCounter, 1079 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:16,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 4542 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:34:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434893 states. [2025-03-08 06:34:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434893 to 324332. [2025-03-08 06:34:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324332 states, 324331 states have (on average 1.6432132605270542) internal successors, (532945), 324331 states have internal predecessors, (532945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324332 states to 324332 states and 532945 transitions. [2025-03-08 06:34:21,751 INFO L78 Accepts]: Start accepts. Automaton has 324332 states and 532945 transitions. Word has length 237 [2025-03-08 06:34:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:21,751 INFO L471 AbstractCegarLoop]: Abstraction has 324332 states and 532945 transitions. [2025-03-08 06:34:21,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 324332 states and 532945 transitions. [2025-03-08 06:34:21,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 06:34:21,753 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:21,753 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] [2025-03-08 06:34:21,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:34:21,753 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:21,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:21,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1193456573, now seen corresponding path program 1 times [2025-03-08 06:34:21,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:21,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604404695] [2025-03-08 06:34:21,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:21,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:21,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 06:34:21,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 06:34:21,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:21,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:21,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:21,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604404695] [2025-03-08 06:34:21,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604404695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:21,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:21,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:34:21,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511878340] [2025-03-08 06:34:21,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:21,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:34:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:21,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:34:21,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:34:21,901 INFO L87 Difference]: Start difference. First operand 324332 states and 532945 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:34:24,954 INFO L93 Difference]: Finished difference Result 712561 states and 1171523 transitions. [2025-03-08 06:34:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:34:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2025-03-08 06:34:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:34:25,903 INFO L225 Difference]: With dead ends: 712561 [2025-03-08 06:34:25,903 INFO L226 Difference]: Without dead ends: 489326 [2025-03-08 06:34:26,083 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 [2025-03-08 06:34:26,084 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 336 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:34:26,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 2839 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:34:26,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489326 states. [2025-03-08 06:34:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489326 to 489324. [2025-03-08 06:34:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489324 states, 489323 states have (on average 1.637707608266932) internal successors, (801368), 489323 states have internal predecessors, (801368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489324 states to 489324 states and 801368 transitions. [2025-03-08 06:34:33,045 INFO L78 Accepts]: Start accepts. Automaton has 489324 states and 801368 transitions. Word has length 237 [2025-03-08 06:34:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:34:33,046 INFO L471 AbstractCegarLoop]: Abstraction has 489324 states and 801368 transitions. [2025-03-08 06:34:33,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:34:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 489324 states and 801368 transitions. [2025-03-08 06:34:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-03-08 06:34:33,047 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:34:33,047 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] [2025-03-08 06:34:33,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 06:34:33,048 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:34:33,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:34:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1025613731, now seen corresponding path program 1 times [2025-03-08 06:34:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:34:33,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277270062] [2025-03-08 06:34:33,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:34:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:34:33,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-03-08 06:34:33,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-03-08 06:34:33,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:34:33,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:34:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:34:33,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:34:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277270062] [2025-03-08 06:34:33,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277270062] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:34:33,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:34:33,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:34:33,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992811087] [2025-03-08 06:34:33,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:34:33,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:34:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:34:33,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:34:33,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:34:33,209 INFO L87 Difference]: Start difference. First operand 489324 states and 801368 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)