./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-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 a6a02224ad3116421a031fb474928d71f99a366daf138bf7c752aaea303a81f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:22:54,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:22:54,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:22:54,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:22:54,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:22:54,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:22:54,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:22:54,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:22:54,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:22:54,831 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:22:54,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:22:54,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:22:54,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:22:54,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:22:54,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:22:54,832 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:22:54,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:22:54,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:22:54,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:22:54,833 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 -> a6a02224ad3116421a031fb474928d71f99a366daf138bf7c752aaea303a81f9 [2025-03-08 06:22:55,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:22:55,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:22:55,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:22:55,084 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:22:55,084 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:22:55,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-03-08 06:22:56,242 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d047eb67/c97423ef132f47d2b77eb490802992c4/FLAG6f072e3c9 [2025-03-08 06:22:56,491 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:22:56,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-03-08 06:22:56,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d047eb67/c97423ef132f47d2b77eb490802992c4/FLAG6f072e3c9 [2025-03-08 06:22:56,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d047eb67/c97423ef132f47d2b77eb490802992c4 [2025-03-08 06:22:56,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:22:56,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:22:56,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:22:56,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:22:56,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:22:56,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4e3418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56, skipping insertion in model container [2025-03-08 06:22:56,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:22:56,723 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2025-03-08 06:22:56,740 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2025-03-08 06:22:56,745 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2025-03-08 06:22:56,749 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2025-03-08 06:22:56,753 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2025-03-08 06:22:56,755 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2025-03-08 06:22:56,758 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2025-03-08 06:22:56,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:22:56,792 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:22:56,823 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2025-03-08 06:22:56,832 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2025-03-08 06:22:56,836 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2025-03-08 06:22:56,839 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2025-03-08 06:22:56,844 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2025-03-08 06:22:56,847 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2025-03-08 06:22:56,850 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_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2025-03-08 06:22:56,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:22:56,898 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:22:56,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56 WrapperNode [2025-03-08 06:22:56,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:22:56,899 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:22:56,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:22:56,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:22:56,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,962 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1047 [2025-03-08 06:22:56,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:22:56,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:22:56,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:22:56,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:22:56,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,996 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 06:22:56,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:56,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,017 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:22:57,029 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:22:57,029 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:22:57,029 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:22:57,030 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (1/1) ... [2025-03-08 06:22:57,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:22:57,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:22:57,055 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 06:22:57,058 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 06:22:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:22:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:22:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:22:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:22:57,182 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:22:57,183 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:22:57,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L498: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-08 06:22:57,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L995: havoc main_~__tmp_9~0#1, main_~assert__arg~8#1;havoc main_~check__tmp~8#1; [2025-03-08 06:22:57,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L963: havoc main_~node3__m3~5#1; [2025-03-08 06:22:57,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L834: havoc main_~node3__m3~4#1; [2025-03-08 06:22:57,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1297: havoc main_~__tmp_12~0#1, main_~assert__arg~11#1;havoc main_~check__tmp~12#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1232: havoc main_~__tmp_11~0#1, main_~assert__arg~10#1;havoc main_~check__tmp~11#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1200: havoc main_~node3____CPAchecker_TMP_0~2#1;havoc main_~node3__m3~6#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L672: havoc main_~node3__m3~3#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1467: havoc main_~__tmp_14~0#1, main_~assert__arg~13#1;havoc main_~check__tmp~14#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L146: havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-08 06:22:57,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1402: havoc main_~__tmp_13~0#1, main_~assert__arg~12#1;havoc main_~check__tmp~13#1; [2025-03-08 06:22:57,949 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L246: havoc main_~node2__m2~1#1; [2025-03-08 06:22:57,949 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L180: havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__m3~0#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L874: havoc main_~__tmp_7~0#1, main_~assert__arg~6#1;havoc main_~check__tmp~6#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L346: havoc main_~node3__m3~2#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1370: havoc main_~node3____CPAchecker_TMP_0~3#1;havoc main_~node3__m3~7#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L712: havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L548: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L453: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1147: havoc main_~__tmp_10~0#1, main_~assert__arg~9#1;havoc main_~check__tmp~10#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L819: havoc main_~node2__m2~3#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L921: havoc main_~__tmp_8~0#1, main_~assert__arg~7#1;havoc main_~check__tmp~7#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L624: havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~node3__m3~1#1; [2025-03-08 06:22:57,950 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L163: havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__m2~0#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1617: havoc main_~__tmp_16~0#1, main_~assert__arg~15#1;havoc main_~check__tmp~16#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1353: havoc main_~node2____CPAchecker_TMP_0~2#1;havoc main_~node2__m2~4#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L759: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1552: havoc main_~__tmp_15~0#1, main_~assert__arg~14#1;havoc main_~check__tmp~15#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1520: havoc main_~node3____CPAchecker_TMP_0~4#1;havoc main_~node3__m3~8#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node2__m2~2#1; [2025-03-08 06:22:57,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1025: havoc main_~check__tmp~9#1; [2025-03-08 06:22:57,991 INFO L? ?]: Removed 161 outVars from TransFormulas that were not future-live. [2025-03-08 06:22:57,992 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:22:58,005 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:22:58,008 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:22:58,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:22:58 BoogieIcfgContainer [2025-03-08 06:22:58,008 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:22:58,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:22:58,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:22:58,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:22:58,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:22:56" (1/3) ... [2025-03-08 06:22:58,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbaf247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:22:58, skipping insertion in model container [2025-03-08 06:22:58,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:22:56" (2/3) ... [2025-03-08 06:22:58,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbaf247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:22:58, skipping insertion in model container [2025-03-08 06:22:58,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:22:58" (3/3) ... [2025-03-08 06:22:58,015 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-03-08 06:22:58,026 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:22:58,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c that has 1 procedures, 206 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-03-08 06:22:58,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:22:58,084 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;@38d973b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:22:58,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-08 06:22:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 205 states have internal predecessors, (361), 0 states have call successors, (0), 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 06:22:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 06:22:58,096 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:22:58,096 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:22:58,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:22:58,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:22:58,102 INFO L85 PathProgramCache]: Analyzing trace with hash -406684472, now seen corresponding path program 1 times [2025-03-08 06:22:58,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:22:58,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959351793] [2025-03-08 06:22:58,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:22:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:22:58,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 06:22:58,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 06:22:58,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:22:58,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:22:58,542 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 06:22:58,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:22:58,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959351793] [2025-03-08 06:22:58,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959351793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:22:58,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:22:58,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:22:58,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020357851] [2025-03-08 06:22:58,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:22:58,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:22:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:22:58,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:22:58,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:22:58,567 INFO L87 Difference]: Start difference. First operand has 206 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 205 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 06:22:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:22:58,746 INFO L93 Difference]: Finished difference Result 338 states and 568 transitions. [2025-03-08 06:22:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:22:58,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2025-03-08 06:22:58,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:22:58,755 INFO L225 Difference]: With dead ends: 338 [2025-03-08 06:22:58,756 INFO L226 Difference]: Without dead ends: 174 [2025-03-08 06:22:58,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:22:58,762 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 846 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:22:58,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 223 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:22:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-08 06:22:58,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-03-08 06:22:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 167 states have (on average 1.2934131736526946) internal successors, (216), 173 states have internal predecessors, (216), 0 states have call successors, (0), 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 06:22:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2025-03-08 06:22:58,792 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 46 [2025-03-08 06:22:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:22:58,792 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2025-03-08 06:22:58,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 06:22:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2025-03-08 06:22:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-08 06:22:58,793 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:22:58,793 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] [2025-03-08 06:22:58,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:22:58,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:22:58,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:22:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2028953891, now seen corresponding path program 1 times [2025-03-08 06:22:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:22:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253230739] [2025-03-08 06:22:58,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:22:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:22:58,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-08 06:22:58,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-08 06:22:58,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:22:58,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:22:58,955 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 06:22:58,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:22:58,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253230739] [2025-03-08 06:22:58,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253230739] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:22:58,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:22:58,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:22:58,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694466131] [2025-03-08 06:22:58,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:22:58,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:22:58,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:22:58,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:22:58,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:22:58,959 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 06:22:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:22:59,120 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2025-03-08 06:22:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:22:59,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2025-03-08 06:22:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:22:59,124 INFO L225 Difference]: With dead ends: 297 [2025-03-08 06:22:59,124 INFO L226 Difference]: Without dead ends: 161 [2025-03-08 06:22:59,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:22:59,126 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 558 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:22:59,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 132 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:22:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-08 06:22:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-03-08 06:22:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 154 states have (on average 1.2987012987012987) internal successors, (200), 160 states have internal predecessors, (200), 0 states have call successors, (0), 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 06:22:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2025-03-08 06:22:59,133 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 47 [2025-03-08 06:22:59,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:22:59,133 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2025-03-08 06:22:59,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 06:22:59,133 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2025-03-08 06:22:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 06:22:59,134 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:22:59,134 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] [2025-03-08 06:22:59,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:22:59,134 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:22:59,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:22:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash 219991992, now seen corresponding path program 1 times [2025-03-08 06:22:59,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:22:59,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522415117] [2025-03-08 06:22:59,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:22:59,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:22:59,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 06:22:59,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 06:22:59,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:22:59,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:22:59,308 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 06:22:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:22:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522415117] [2025-03-08 06:22:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522415117] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:22:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:22:59,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:22:59,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394018507] [2025-03-08 06:22:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:22:59,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:22:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:22:59,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:22:59,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:22:59,309 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 06:22:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:22:59,420 INFO L93 Difference]: Finished difference Result 284 states and 361 transitions. [2025-03-08 06:22:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:22:59,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2025-03-08 06:22:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:22:59,422 INFO L225 Difference]: With dead ends: 284 [2025-03-08 06:22:59,422 INFO L226 Difference]: Without dead ends: 156 [2025-03-08 06:22:59,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:22:59,423 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 524 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:22:59,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 129 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:22:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-03-08 06:22:59,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2025-03-08 06:22:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 155 states have internal predecessors, (193), 0 states have call successors, (0), 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 06:22:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2025-03-08 06:22:59,433 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 48 [2025-03-08 06:22:59,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:22:59,433 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2025-03-08 06:22:59,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 06:22:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2025-03-08 06:22:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-08 06:22:59,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:22:59,436 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] [2025-03-08 06:22:59,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:22:59,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:22:59,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:22:59,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1057416370, now seen corresponding path program 1 times [2025-03-08 06:22:59,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:22:59,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630839321] [2025-03-08 06:22:59,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:22:59,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:22:59,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 06:22:59,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 06:22:59,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:22:59,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:22:59,758 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 06:22:59,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:22:59,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630839321] [2025-03-08 06:22:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630839321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:22:59,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:22:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 06:22:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467369788] [2025-03-08 06:22:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:22:59,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 06:22:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:22:59,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 06:22:59,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:22:59,761 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:00,011 INFO L93 Difference]: Finished difference Result 311 states and 393 transitions. [2025-03-08 06:23:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 06:23:00,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2025-03-08 06:23:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:00,013 INFO L225 Difference]: With dead ends: 311 [2025-03-08 06:23:00,013 INFO L226 Difference]: Without dead ends: 228 [2025-03-08 06:23:00,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:23:00,014 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 988 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:00,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 384 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:00,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-08 06:23:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 156. [2025-03-08 06:23:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 155 states have internal predecessors, (192), 0 states have call successors, (0), 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 06:23:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 192 transitions. [2025-03-08 06:23:00,021 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 192 transitions. Word has length 49 [2025-03-08 06:23:00,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:00,021 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 192 transitions. [2025-03-08 06:23:00,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 192 transitions. [2025-03-08 06:23:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-08 06:23:00,022 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:00,026 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] [2025-03-08 06:23:00,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:23:00,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:00,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash -427233999, now seen corresponding path program 1 times [2025-03-08 06:23:00,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:00,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928165626] [2025-03-08 06:23:00,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:00,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:00,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 06:23:00,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 06:23:00,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:00,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:00,343 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 06:23:00,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:00,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928165626] [2025-03-08 06:23:00,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928165626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:00,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:00,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:23:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692036790] [2025-03-08 06:23:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:00,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:23:00,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:00,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:23:00,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:23:00,347 INFO L87 Difference]: Start difference. First operand 156 states and 192 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:00,718 INFO L93 Difference]: Finished difference Result 302 states and 388 transitions. [2025-03-08 06:23:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:23:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2025-03-08 06:23:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:00,720 INFO L225 Difference]: With dead ends: 302 [2025-03-08 06:23:00,720 INFO L226 Difference]: Without dead ends: 242 [2025-03-08 06:23:00,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:23:00,721 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 834 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:00,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 751 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-08 06:23:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 156. [2025-03-08 06:23:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 155 states have internal predecessors, (191), 0 states have call successors, (0), 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 06:23:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2025-03-08 06:23:00,726 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 49 [2025-03-08 06:23:00,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:00,726 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2025-03-08 06:23:00,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2025-03-08 06:23:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-08 06:23:00,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:00,727 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] [2025-03-08 06:23:00,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:23:00,728 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:00,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:00,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1633717074, now seen corresponding path program 1 times [2025-03-08 06:23:00,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:00,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209676299] [2025-03-08 06:23:00,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:00,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 06:23:00,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 06:23:00,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:00,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:00,957 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 06:23:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209676299] [2025-03-08 06:23:00,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209676299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:00,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:00,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:23:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56894225] [2025-03-08 06:23:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:00,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:23:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:00,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:23:00,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:23:00,959 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:01,277 INFO L93 Difference]: Finished difference Result 243 states and 302 transitions. [2025-03-08 06:23:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:23:01,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2025-03-08 06:23:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:01,278 INFO L225 Difference]: With dead ends: 243 [2025-03-08 06:23:01,278 INFO L226 Difference]: Without dead ends: 238 [2025-03-08 06:23:01,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:23:01,279 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 850 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:01,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 672 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-03-08 06:23:01,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 156. [2025-03-08 06:23:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 155 states have internal predecessors, (190), 0 states have call successors, (0), 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 06:23:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2025-03-08 06:23:01,289 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 49 [2025-03-08 06:23:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:01,289 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2025-03-08 06:23:01,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 06:23:01,289 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2025-03-08 06:23:01,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:23:01,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:01,290 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] [2025-03-08 06:23:01,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:23:01,290 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:01,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:01,291 INFO L85 PathProgramCache]: Analyzing trace with hash -744204693, now seen corresponding path program 1 times [2025-03-08 06:23:01,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:01,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793272964] [2025-03-08 06:23:01,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:01,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:01,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:23:01,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:23:01,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:01,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:01,685 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 06:23:01,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:01,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793272964] [2025-03-08 06:23:01,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793272964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:01,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:01,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 06:23:01,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552672142] [2025-03-08 06:23:01,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:01,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 06:23:01,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:01,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 06:23:01,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-08 06:23:01,686 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:01,977 INFO L93 Difference]: Finished difference Result 283 states and 365 transitions. [2025-03-08 06:23:01,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 06:23:01,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:23:01,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:01,979 INFO L225 Difference]: With dead ends: 283 [2025-03-08 06:23:01,979 INFO L226 Difference]: Without dead ends: 229 [2025-03-08 06:23:01,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2025-03-08 06:23:01,980 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 326 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:01,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1090 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:23:01,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2025-03-08 06:23:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 145. [2025-03-08 06:23:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 139 states have (on average 1.2733812949640289) internal successors, (177), 144 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:23:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 177 transitions. [2025-03-08 06:23:01,988 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 177 transitions. Word has length 51 [2025-03-08 06:23:01,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:01,988 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 177 transitions. [2025-03-08 06:23:01,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 177 transitions. [2025-03-08 06:23:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:23:01,989 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:01,990 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] [2025-03-08 06:23:01,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:23:01,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:01,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1271995951, now seen corresponding path program 1 times [2025-03-08 06:23:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:01,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332116913] [2025-03-08 06:23:01,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:01,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:02,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:23:02,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:23:02,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:02,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:02,379 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 06:23:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:02,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332116913] [2025-03-08 06:23:02,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332116913] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:02,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:02,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-08 06:23:02,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481271867] [2025-03-08 06:23:02,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:02,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 06:23:02,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:02,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 06:23:02,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-08 06:23:02,381 INFO L87 Difference]: Start difference. First operand 145 states and 177 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:02,730 INFO L93 Difference]: Finished difference Result 388 states and 508 transitions. [2025-03-08 06:23:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 06:23:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:23:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:02,731 INFO L225 Difference]: With dead ends: 388 [2025-03-08 06:23:02,733 INFO L226 Difference]: Without dead ends: 323 [2025-03-08 06:23:02,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2025-03-08 06:23:02,734 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 856 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:02,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 998 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2025-03-08 06:23:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 123. [2025-03-08 06:23:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.26890756302521) internal successors, (151), 122 states have internal predecessors, (151), 0 states have call successors, (0), 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 06:23:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2025-03-08 06:23:02,740 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 51 [2025-03-08 06:23:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:02,741 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2025-03-08 06:23:02,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2025-03-08 06:23:02,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:23:02,742 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:02,742 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] [2025-03-08 06:23:02,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:23:02,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:02,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:02,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1645340910, now seen corresponding path program 1 times [2025-03-08 06:23:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:02,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208770118] [2025-03-08 06:23:02,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:02,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:23:02,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:23:02,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:02,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:03,116 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 06:23:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:03,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208770118] [2025-03-08 06:23:03,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208770118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:03,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:03,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 06:23:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368039998] [2025-03-08 06:23:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:03,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 06:23:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:03,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 06:23:03,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:23:03,117 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:03,497 INFO L93 Difference]: Finished difference Result 185 states and 236 transitions. [2025-03-08 06:23:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:23:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:23:03,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:03,499 INFO L225 Difference]: With dead ends: 185 [2025-03-08 06:23:03,499 INFO L226 Difference]: Without dead ends: 181 [2025-03-08 06:23:03,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2025-03-08 06:23:03,499 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 718 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:03,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 760 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:23:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-03-08 06:23:03,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 119. [2025-03-08 06:23:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.2672413793103448) internal successors, (147), 118 states have internal predecessors, (147), 0 states have call successors, (0), 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 06:23:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 147 transitions. [2025-03-08 06:23:03,503 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 147 transitions. Word has length 51 [2025-03-08 06:23:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:03,503 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 147 transitions. [2025-03-08 06:23:03,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:23:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 147 transitions. [2025-03-08 06:23:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-08 06:23:03,504 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:03,504 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] [2025-03-08 06:23:03,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:23:03,504 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:03,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2017752350, now seen corresponding path program 1 times [2025-03-08 06:23:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336042896] [2025-03-08 06:23:03,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:03,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-08 06:23:03,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 06:23:03,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:03,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:03,640 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 06:23:03,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:03,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336042896] [2025-03-08 06:23:03,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336042896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:03,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:03,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:23:03,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55746093] [2025-03-08 06:23:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:03,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:23:03,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:03,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:23:03,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:23:03,641 INFO L87 Difference]: Start difference. First operand 119 states and 147 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 06:23:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:03,916 INFO L93 Difference]: Finished difference Result 262 states and 340 transitions. [2025-03-08 06:23:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 06:23:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2025-03-08 06:23:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:03,918 INFO L225 Difference]: With dead ends: 262 [2025-03-08 06:23:03,918 INFO L226 Difference]: Without dead ends: 201 [2025-03-08 06:23:03,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:23:03,919 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 428 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:03,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 618 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:03,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-08 06:23:03,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 119. [2025-03-08 06:23:03,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 118 states have internal predecessors, (146), 0 states have call successors, (0), 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 06:23:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2025-03-08 06:23:03,921 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 52 [2025-03-08 06:23:03,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:03,921 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2025-03-08 06:23:03,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 06:23:03,922 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2025-03-08 06:23:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-08 06:23:03,922 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:03,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:03,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 06:23:03,922 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1953121440, now seen corresponding path program 1 times [2025-03-08 06:23:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792821213] [2025-03-08 06:23:03,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:03,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-08 06:23:03,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 06:23:03,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:03,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:04,052 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 06:23:04,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:04,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792821213] [2025-03-08 06:23:04,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792821213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:04,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:04,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:23:04,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313100816] [2025-03-08 06:23:04,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:04,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:23:04,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:04,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:23:04,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:23:04,054 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 06:23:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:04,299 INFO L93 Difference]: Finished difference Result 190 states and 239 transitions. [2025-03-08 06:23:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:23:04,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2025-03-08 06:23:04,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:04,300 INFO L225 Difference]: With dead ends: 190 [2025-03-08 06:23:04,301 INFO L226 Difference]: Without dead ends: 183 [2025-03-08 06:23:04,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:23:04,301 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 298 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:04,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 573 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:04,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-03-08 06:23:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 119. [2025-03-08 06:23:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.25) internal successors, (145), 118 states have internal predecessors, (145), 0 states have call successors, (0), 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 06:23:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2025-03-08 06:23:04,307 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 52 [2025-03-08 06:23:04,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:04,307 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2025-03-08 06:23:04,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 06:23:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2025-03-08 06:23:04,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-08 06:23:04,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:04,308 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] [2025-03-08 06:23:04,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:23:04,308 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:04,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:04,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1832131806, now seen corresponding path program 1 times [2025-03-08 06:23:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710458979] [2025-03-08 06:23:04,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:04,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:04,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 06:23:04,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 06:23:04,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:04,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:04,848 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 06:23:04,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710458979] [2025-03-08 06:23:04,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710458979] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:04,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:04,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-03-08 06:23:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452906713] [2025-03-08 06:23:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:04,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 06:23:04,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:04,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 06:23:04,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:23:04,850 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 06:23:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:05,962 INFO L93 Difference]: Finished difference Result 331 states and 427 transitions. [2025-03-08 06:23:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 06:23:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2025-03-08 06:23:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:05,964 INFO L225 Difference]: With dead ends: 331 [2025-03-08 06:23:05,964 INFO L226 Difference]: Without dead ends: 325 [2025-03-08 06:23:05,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=814, Unknown=0, NotChecked=0, Total=992 [2025-03-08 06:23:05,964 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 816 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:05,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2877 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 06:23:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-03-08 06:23:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 130. [2025-03-08 06:23:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.2519685039370079) internal successors, (159), 129 states have internal predecessors, (159), 0 states have call successors, (0), 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 06:23:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 159 transitions. [2025-03-08 06:23:05,968 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 159 transitions. Word has length 54 [2025-03-08 06:23:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:05,969 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 159 transitions. [2025-03-08 06:23:05,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 06:23:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 159 transitions. [2025-03-08 06:23:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-08 06:23:05,969 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:05,969 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] [2025-03-08 06:23:05,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:23:05,969 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:05,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:05,970 INFO L85 PathProgramCache]: Analyzing trace with hash 143623904, now seen corresponding path program 1 times [2025-03-08 06:23:05,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:05,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196162497] [2025-03-08 06:23:05,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:05,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 06:23:05,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 06:23:05,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:05,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:06,505 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 06:23:06,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:06,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196162497] [2025-03-08 06:23:06,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196162497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:06,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:06,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-03-08 06:23:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982892146] [2025-03-08 06:23:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:06,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 06:23:06,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:06,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 06:23:06,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:23:06,508 INFO L87 Difference]: Start difference. First operand 130 states and 159 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 06:23:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:07,570 INFO L93 Difference]: Finished difference Result 333 states and 428 transitions. [2025-03-08 06:23:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 06:23:07,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2025-03-08 06:23:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:07,572 INFO L225 Difference]: With dead ends: 333 [2025-03-08 06:23:07,572 INFO L226 Difference]: Without dead ends: 325 [2025-03-08 06:23:07,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2025-03-08 06:23:07,574 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 779 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:07,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3037 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:23:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-03-08 06:23:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 134. [2025-03-08 06:23:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 131 states have (on average 1.251908396946565) internal successors, (164), 133 states have internal predecessors, (164), 0 states have call successors, (0), 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 06:23:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 164 transitions. [2025-03-08 06:23:07,580 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 164 transitions. Word has length 54 [2025-03-08 06:23:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:07,580 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 164 transitions. [2025-03-08 06:23:07,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 06:23:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 164 transitions. [2025-03-08 06:23:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:23:07,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:07,581 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] [2025-03-08 06:23:07,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:23:07,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:07,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash 750927920, now seen corresponding path program 1 times [2025-03-08 06:23:07,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:07,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927154028] [2025-03-08 06:23:07,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:07,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:07,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:23:07,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:23:07,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:07,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:07,942 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 06:23:07,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:07,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927154028] [2025-03-08 06:23:07,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927154028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:07,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:07,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 06:23:07,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752250703] [2025-03-08 06:23:07,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:07,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 06:23:07,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:07,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 06:23:07,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:23:07,944 INFO L87 Difference]: Start difference. First operand 134 states and 164 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 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 06:23:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:08,444 INFO L93 Difference]: Finished difference Result 190 states and 244 transitions. [2025-03-08 06:23:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 06:23:08,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2025-03-08 06:23:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:08,445 INFO L225 Difference]: With dead ends: 190 [2025-03-08 06:23:08,446 INFO L226 Difference]: Without dead ends: 184 [2025-03-08 06:23:08,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-03-08 06:23:08,447 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 508 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:08,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 987 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:23:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-03-08 06:23:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 122. [2025-03-08 06:23:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.25) internal successors, (150), 121 states have internal predecessors, (150), 0 states have call successors, (0), 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 06:23:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2025-03-08 06:23:08,452 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 55 [2025-03-08 06:23:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:08,452 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2025-03-08 06:23:08,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 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 06:23:08,453 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2025-03-08 06:23:08,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:23:08,454 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:08,454 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] [2025-03-08 06:23:08,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:23:08,454 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:08,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash -937579982, now seen corresponding path program 1 times [2025-03-08 06:23:08,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:08,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062312012] [2025-03-08 06:23:08,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:08,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:08,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:23:08,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:23:08,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:08,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:08,731 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 06:23:08,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:08,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062312012] [2025-03-08 06:23:08,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062312012] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:08,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:08,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 06:23:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205686536] [2025-03-08 06:23:08,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:08,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 06:23:08,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:08,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 06:23:08,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-08 06:23:08,732 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 06:23:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:08,973 INFO L93 Difference]: Finished difference Result 178 states and 229 transitions. [2025-03-08 06:23:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 06:23:08,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2025-03-08 06:23:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:08,974 INFO L225 Difference]: With dead ends: 178 [2025-03-08 06:23:08,974 INFO L226 Difference]: Without dead ends: 163 [2025-03-08 06:23:08,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2025-03-08 06:23:08,976 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 324 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:08,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 885 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:23:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-08 06:23:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 101. [2025-03-08 06:23:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.26) internal successors, (126), 100 states have internal predecessors, (126), 0 states have call successors, (0), 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 06:23:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2025-03-08 06:23:08,980 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 55 [2025-03-08 06:23:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:08,980 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2025-03-08 06:23:08,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 06:23:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2025-03-08 06:23:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 06:23:08,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:08,981 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] [2025-03-08 06:23:08,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 06:23:08,981 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:08,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash -714424719, now seen corresponding path program 1 times [2025-03-08 06:23:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972486665] [2025-03-08 06:23:08,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:08,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 06:23:08,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 06:23:08,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:08,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,039 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 06:23:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972486665] [2025-03-08 06:23:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972486665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:23:09,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036413756] [2025-03-08 06:23:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:23:09,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:23:09,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:23:09,041 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 06:23:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,099 INFO L93 Difference]: Finished difference Result 359 states and 510 transitions. [2025-03-08 06:23:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 06:23:09,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2025-03-08 06:23:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,101 INFO L225 Difference]: With dead ends: 359 [2025-03-08 06:23:09,101 INFO L226 Difference]: Without dead ends: 316 [2025-03-08 06:23:09,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:23:09,102 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 482 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 505 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-08 06:23:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 142. [2025-03-08 06:23:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.326241134751773) internal successors, (187), 141 states have internal predecessors, (187), 0 states have call successors, (0), 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 06:23:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 187 transitions. [2025-03-08 06:23:09,107 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 187 transitions. Word has length 72 [2025-03-08 06:23:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,107 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 187 transitions. [2025-03-08 06:23:09,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 06:23:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 187 transitions. [2025-03-08 06:23:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 06:23:09,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,108 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:09,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 06:23:09,108 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1141906571, now seen corresponding path program 1 times [2025-03-08 06:23:09,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924838176] [2025-03-08 06:23:09,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 06:23:09,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 06:23:09,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,183 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 06:23:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924838176] [2025-03-08 06:23:09,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924838176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:23:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005219162] [2025-03-08 06:23:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:23:09,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:23:09,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:23:09,184 INFO L87 Difference]: Start difference. First operand 142 states and 187 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,233 INFO L93 Difference]: Finished difference Result 437 states and 624 transitions. [2025-03-08 06:23:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:23:09,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2025-03-08 06:23:09,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,235 INFO L225 Difference]: With dead ends: 437 [2025-03-08 06:23:09,235 INFO L226 Difference]: Without dead ends: 353 [2025-03-08 06:23:09,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:23:09,235 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 283 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 445 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2025-03-08 06:23:09,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 224. [2025-03-08 06:23:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.390134529147982) internal successors, (310), 223 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:23:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 310 transitions. [2025-03-08 06:23:09,244 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 310 transitions. Word has length 74 [2025-03-08 06:23:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,244 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 310 transitions. [2025-03-08 06:23:09,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 310 transitions. [2025-03-08 06:23:09,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 06:23:09,245 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,245 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] [2025-03-08 06:23:09,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 06:23:09,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1006298069, now seen corresponding path program 1 times [2025-03-08 06:23:09,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897390903] [2025-03-08 06:23:09,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 06:23:09,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 06:23:09,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,302 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 06:23:09,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897390903] [2025-03-08 06:23:09,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897390903] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:23:09,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257477534] [2025-03-08 06:23:09,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:23:09,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:23:09,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:23:09,303 INFO L87 Difference]: Start difference. First operand 224 states and 310 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,351 INFO L93 Difference]: Finished difference Result 519 states and 747 transitions. [2025-03-08 06:23:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:23:09,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2025-03-08 06:23:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,353 INFO L225 Difference]: With dead ends: 519 [2025-03-08 06:23:09,353 INFO L226 Difference]: Without dead ends: 435 [2025-03-08 06:23:09,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:23:09,354 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 291 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 438 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2025-03-08 06:23:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 347. [2025-03-08 06:23:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4277456647398843) internal successors, (494), 346 states have internal predecessors, (494), 0 states have call successors, (0), 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 06:23:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 494 transitions. [2025-03-08 06:23:09,363 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 494 transitions. Word has length 74 [2025-03-08 06:23:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,364 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 494 transitions. [2025-03-08 06:23:09,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 494 transitions. [2025-03-08 06:23:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 06:23:09,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,364 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] [2025-03-08 06:23:09,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 06:23:09,364 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1836978280, now seen corresponding path program 1 times [2025-03-08 06:23:09,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075908583] [2025-03-08 06:23:09,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 06:23:09,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 06:23:09,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,403 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 06:23:09,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075908583] [2025-03-08 06:23:09,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075908583] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:09,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991327690] [2025-03-08 06:23:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:09,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:09,405 INFO L87 Difference]: Start difference. First operand 347 states and 494 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,424 INFO L93 Difference]: Finished difference Result 880 states and 1279 transitions. [2025-03-08 06:23:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:09,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2025-03-08 06:23:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,427 INFO L225 Difference]: With dead ends: 880 [2025-03-08 06:23:09,427 INFO L226 Difference]: Without dead ends: 591 [2025-03-08 06:23:09,427 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 06:23:09,427 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 68 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 196 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-03-08 06:23:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 582. [2025-03-08 06:23:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.4130808950086058) internal successors, (821), 581 states have internal predecessors, (821), 0 states have call successors, (0), 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 06:23:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 821 transitions. [2025-03-08 06:23:09,436 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 821 transitions. Word has length 74 [2025-03-08 06:23:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,437 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 821 transitions. [2025-03-08 06:23:09,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 821 transitions. [2025-03-08 06:23:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 06:23:09,437 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,437 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] [2025-03-08 06:23:09,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 06:23:09,438 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1872995599, now seen corresponding path program 1 times [2025-03-08 06:23:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605394819] [2025-03-08 06:23:09,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 06:23:09,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 06:23:09,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,471 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 06:23:09,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605394819] [2025-03-08 06:23:09,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605394819] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:09,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115489541] [2025-03-08 06:23:09,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:09,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:09,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:09,472 INFO L87 Difference]: Start difference. First operand 582 states and 821 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,491 INFO L93 Difference]: Finished difference Result 1108 states and 1581 transitions. [2025-03-08 06:23:09,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2025-03-08 06:23:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,493 INFO L225 Difference]: With dead ends: 1108 [2025-03-08 06:23:09,493 INFO L226 Difference]: Without dead ends: 584 [2025-03-08 06:23:09,494 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 06:23:09,495 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 201 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2025-03-08 06:23:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2025-03-08 06:23:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.4061962134251291) internal successors, (817), 581 states have internal predecessors, (817), 0 states have call successors, (0), 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 06:23:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 817 transitions. [2025-03-08 06:23:09,506 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 817 transitions. Word has length 74 [2025-03-08 06:23:09,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,507 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 817 transitions. [2025-03-08 06:23:09,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 06:23:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 817 transitions. [2025-03-08 06:23:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-08 06:23:09,507 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,507 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] [2025-03-08 06:23:09,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 06:23:09,511 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2037094090, now seen corresponding path program 1 times [2025-03-08 06:23:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385686651] [2025-03-08 06:23:09,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 06:23:09,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 06:23:09,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,569 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 06:23:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385686651] [2025-03-08 06:23:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385686651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673067828] [2025-03-08 06:23:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:09,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:09,572 INFO L87 Difference]: Start difference. First operand 582 states and 817 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 06:23:09,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,587 INFO L93 Difference]: Finished difference Result 1574 states and 2229 transitions. [2025-03-08 06:23:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:09,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2025-03-08 06:23:09,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,591 INFO L225 Difference]: With dead ends: 1574 [2025-03-08 06:23:09,591 INFO L226 Difference]: Without dead ends: 1050 [2025-03-08 06:23:09,592 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 06:23:09,593 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2025-03-08 06:23:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 992. [2025-03-08 06:23:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 991 states have (on average 1.401614530776993) internal successors, (1389), 991 states have internal predecessors, (1389), 0 states have call successors, (0), 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 06:23:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1389 transitions. [2025-03-08 06:23:09,611 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1389 transitions. Word has length 75 [2025-03-08 06:23:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,611 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1389 transitions. [2025-03-08 06:23:09,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 06:23:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1389 transitions. [2025-03-08 06:23:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-08 06:23:09,612 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,613 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] [2025-03-08 06:23:09,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 06:23:09,614 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,614 INFO L85 PathProgramCache]: Analyzing trace with hash 379945564, now seen corresponding path program 1 times [2025-03-08 06:23:09,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972045810] [2025-03-08 06:23:09,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-08 06:23:09,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-08 06:23:09,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,699 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 06:23:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972045810] [2025-03-08 06:23:09,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972045810] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145216905] [2025-03-08 06:23:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:09,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:09,701 INFO L87 Difference]: Start difference. First operand 992 states and 1389 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 06:23:09,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,724 INFO L93 Difference]: Finished difference Result 2748 states and 3847 transitions. [2025-03-08 06:23:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:09,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2025-03-08 06:23:09,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,730 INFO L225 Difference]: With dead ends: 2748 [2025-03-08 06:23:09,730 INFO L226 Difference]: Without dead ends: 1814 [2025-03-08 06:23:09,731 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 06:23:09,733 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 44 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 258 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2025-03-08 06:23:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1700. [2025-03-08 06:23:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1699 states have (on average 1.3837551500882872) internal successors, (2351), 1699 states have internal predecessors, (2351), 0 states have call successors, (0), 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 06:23:09,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2351 transitions. [2025-03-08 06:23:09,768 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2351 transitions. Word has length 76 [2025-03-08 06:23:09,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,768 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2351 transitions. [2025-03-08 06:23:09,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 06:23:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2351 transitions. [2025-03-08 06:23:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 06:23:09,769 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:09,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 06:23:09,770 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1534752477, now seen corresponding path program 1 times [2025-03-08 06:23:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314187539] [2025-03-08 06:23:09,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 06:23:09,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 06:23:09,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:09,917 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 06:23:09,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:09,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314187539] [2025-03-08 06:23:09,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314187539] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:09,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:09,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:23:09,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632455026] [2025-03-08 06:23:09,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:09,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:23:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:09,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:23:09,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:23:09,918 INFO L87 Difference]: Start difference. First operand 1700 states and 2351 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 06:23:09,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:09,943 INFO L93 Difference]: Finished difference Result 1774 states and 2448 transitions. [2025-03-08 06:23:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:23:09,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2025-03-08 06:23:09,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:09,948 INFO L225 Difference]: With dead ends: 1774 [2025-03-08 06:23:09,949 INFO L226 Difference]: Without dead ends: 1772 [2025-03-08 06:23:09,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:23:09,950 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:09,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2025-03-08 06:23:09,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2025-03-08 06:23:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1771 states have (on average 1.3591191417278374) internal successors, (2407), 1771 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:23:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2407 transitions. [2025-03-08 06:23:09,978 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2407 transitions. Word has length 77 [2025-03-08 06:23:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:09,979 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2407 transitions. [2025-03-08 06:23:09,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 06:23:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2407 transitions. [2025-03-08 06:23:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 06:23:09,979 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:09,980 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] [2025-03-08 06:23:09,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 06:23:09,980 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:09,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:09,980 INFO L85 PathProgramCache]: Analyzing trace with hash 36136603, now seen corresponding path program 1 times [2025-03-08 06:23:09,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:09,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825213139] [2025-03-08 06:23:09,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:09,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:09,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 06:23:09,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 06:23:09,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:09,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:10,036 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 06:23:10,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:10,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825213139] [2025-03-08 06:23:10,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825213139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:10,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:10,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:23:10,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252377650] [2025-03-08 06:23:10,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:10,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:23:10,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:10,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:23:10,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:23:10,038 INFO L87 Difference]: Start difference. First operand 1772 states and 2407 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 06:23:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:10,087 INFO L93 Difference]: Finished difference Result 3256 states and 4451 transitions. [2025-03-08 06:23:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:23:10,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2025-03-08 06:23:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:10,094 INFO L225 Difference]: With dead ends: 3256 [2025-03-08 06:23:10,095 INFO L226 Difference]: Without dead ends: 2762 [2025-03-08 06:23:10,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:23:10,096 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 286 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:10,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 453 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2025-03-08 06:23:10,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2264. [2025-03-08 06:23:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 2263 states have (on average 1.3605832965090587) internal successors, (3079), 2263 states have internal predecessors, (3079), 0 states have call successors, (0), 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 06:23:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3079 transitions. [2025-03-08 06:23:10,144 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3079 transitions. Word has length 77 [2025-03-08 06:23:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:10,144 INFO L471 AbstractCegarLoop]: Abstraction has 2264 states and 3079 transitions. [2025-03-08 06:23:10,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 06:23:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3079 transitions. [2025-03-08 06:23:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-08 06:23:10,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:10,145 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] [2025-03-08 06:23:10,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 06:23:10,145 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:10,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1477555831, now seen corresponding path program 1 times [2025-03-08 06:23:10,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:10,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743453566] [2025-03-08 06:23:10,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:10,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:10,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-08 06:23:10,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-08 06:23:10,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:10,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:10,198 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 06:23:10,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:10,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743453566] [2025-03-08 06:23:10,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743453566] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:10,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60552203] [2025-03-08 06:23:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:10,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:10,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:10,199 INFO L87 Difference]: Start difference. First operand 2264 states and 3079 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 06:23:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:10,227 INFO L93 Difference]: Finished difference Result 5884 states and 7993 transitions. [2025-03-08 06:23:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:10,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2025-03-08 06:23:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:10,238 INFO L225 Difference]: With dead ends: 5884 [2025-03-08 06:23:10,238 INFO L226 Difference]: Without dead ends: 3678 [2025-03-08 06:23:10,240 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 06:23:10,241 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:10,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2025-03-08 06:23:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3388. [2025-03-08 06:23:10,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 1.3413049896663714) internal successors, (4543), 3387 states have internal predecessors, (4543), 0 states have call successors, (0), 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 06:23:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4543 transitions. [2025-03-08 06:23:10,294 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4543 transitions. Word has length 78 [2025-03-08 06:23:10,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:10,294 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 4543 transitions. [2025-03-08 06:23:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 06:23:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4543 transitions. [2025-03-08 06:23:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-08 06:23:10,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:10,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:10,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 06:23:10,296 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:10,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash -974302378, now seen corresponding path program 1 times [2025-03-08 06:23:10,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:10,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27294061] [2025-03-08 06:23:10,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:10,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 06:23:10,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 06:23:10,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:10,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:10,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:10,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27294061] [2025-03-08 06:23:10,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27294061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:10,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:10,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:23:10,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022325100] [2025-03-08 06:23:10,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:10,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:23:10,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:10,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:23:10,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:23:10,349 INFO L87 Difference]: Start difference. First operand 3388 states and 4543 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 06:23:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:10,380 INFO L93 Difference]: Finished difference Result 6720 states and 9025 transitions. [2025-03-08 06:23:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:23:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2025-03-08 06:23:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:10,390 INFO L225 Difference]: With dead ends: 6720 [2025-03-08 06:23:10,391 INFO L226 Difference]: Without dead ends: 3390 [2025-03-08 06:23:10,394 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 06:23:10,395 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 56 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:10,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 238 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:23:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2025-03-08 06:23:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3388. [2025-03-08 06:23:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 1.3200472394449365) internal successors, (4471), 3387 states have internal predecessors, (4471), 0 states have call successors, (0), 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 06:23:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4471 transitions. [2025-03-08 06:23:10,446 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4471 transitions. Word has length 99 [2025-03-08 06:23:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:10,446 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 4471 transitions. [2025-03-08 06:23:10,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 06:23:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4471 transitions. [2025-03-08 06:23:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-08 06:23:10,448 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:10,448 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:10,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 06:23:10,448 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:10,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:10,449 INFO L85 PathProgramCache]: Analyzing trace with hash 417657159, now seen corresponding path program 1 times [2025-03-08 06:23:10,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:10,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065023341] [2025-03-08 06:23:10,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:10,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 06:23:10,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 06:23:10,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:10,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:10,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065023341] [2025-03-08 06:23:10,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065023341] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:23:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613651234] [2025-03-08 06:23:10,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:10,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:23:10,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:23:10,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:23:10,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:23:10,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 06:23:10,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 06:23:10,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:10,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:10,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-08 06:23:10,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:23:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:11,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:23:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:12,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613651234] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:23:12,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:23:12,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-08 06:23:12,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513364081] [2025-03-08 06:23:12,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:23:12,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-08 06:23:12,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:12,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-08 06:23:12,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2025-03-08 06:23:12,328 INFO L87 Difference]: Start difference. First operand 3388 states and 4471 transitions. Second operand has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 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 06:23:15,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:15,388 INFO L93 Difference]: Finished difference Result 27492 states and 36125 transitions. [2025-03-08 06:23:15,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2025-03-08 06:23:15,389 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 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 99 [2025-03-08 06:23:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:15,439 INFO L225 Difference]: With dead ends: 27492 [2025-03-08 06:23:15,440 INFO L226 Difference]: Without dead ends: 24162 [2025-03-08 06:23:15,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4696 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2352, Invalid=13148, Unknown=0, NotChecked=0, Total=15500 [2025-03-08 06:23:15,453 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 2446 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:15,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 2091 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 06:23:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24162 states. [2025-03-08 06:23:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24162 to 17169. [2025-03-08 06:23:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17169 states, 17168 states have (on average 1.3102283317800558) internal successors, (22494), 17168 states have internal predecessors, (22494), 0 states have call successors, (0), 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 06:23:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17169 states to 17169 states and 22494 transitions. [2025-03-08 06:23:15,746 INFO L78 Accepts]: Start accepts. Automaton has 17169 states and 22494 transitions. Word has length 99 [2025-03-08 06:23:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:15,746 INFO L471 AbstractCegarLoop]: Abstraction has 17169 states and 22494 transitions. [2025-03-08 06:23:15,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 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 06:23:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 17169 states and 22494 transitions. [2025-03-08 06:23:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-08 06:23:15,749 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:15,749 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:15,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:23:15,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-08 06:23:15,950 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:15,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:15,951 INFO L85 PathProgramCache]: Analyzing trace with hash 146737973, now seen corresponding path program 1 times [2025-03-08 06:23:15,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:15,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821581580] [2025-03-08 06:23:15,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:15,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:15,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-08 06:23:15,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-08 06:23:15,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:15,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 06:23:16,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:16,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821581580] [2025-03-08 06:23:16,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821581580] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:23:16,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:23:16,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:23:16,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756943301] [2025-03-08 06:23:16,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:23:16,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:23:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:16,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:23:16,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:23:16,140 INFO L87 Difference]: Start difference. First operand 17169 states and 22494 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:23:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:16,445 INFO L93 Difference]: Finished difference Result 51960 states and 67925 transitions. [2025-03-08 06:23:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 06:23:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-08 06:23:16,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:16,496 INFO L225 Difference]: With dead ends: 51960 [2025-03-08 06:23:16,496 INFO L226 Difference]: Without dead ends: 34863 [2025-03-08 06:23:16,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:23:16,514 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 476 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:16,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 499 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:23:16,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34863 states. [2025-03-08 06:23:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34863 to 17169. [2025-03-08 06:23:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17169 states, 17168 states have (on average 1.310111835973905) internal successors, (22492), 17168 states have internal predecessors, (22492), 0 states have call successors, (0), 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 06:23:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17169 states to 17169 states and 22492 transitions. [2025-03-08 06:23:16,775 INFO L78 Accepts]: Start accepts. Automaton has 17169 states and 22492 transitions. Word has length 100 [2025-03-08 06:23:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:16,775 INFO L471 AbstractCegarLoop]: Abstraction has 17169 states and 22492 transitions. [2025-03-08 06:23:16,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:23:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 17169 states and 22492 transitions. [2025-03-08 06:23:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 06:23:16,778 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:16,778 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:16,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-08 06:23:16,778 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:16,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1180881771, now seen corresponding path program 1 times [2025-03-08 06:23:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071092451] [2025-03-08 06:23:16,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:16,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 06:23:16,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 06:23:16,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:16,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:17,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:17,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071092451] [2025-03-08 06:23:17,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071092451] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:23:17,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365039091] [2025-03-08 06:23:17,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:17,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:23:17,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:23:17,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:23:17,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:23:17,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 06:23:17,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 06:23:17,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:17,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:17,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-08 06:23:17,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:23:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:17,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:23:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:18,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365039091] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:23:18,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:23:18,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 29 [2025-03-08 06:23:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184943463] [2025-03-08 06:23:18,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:23:18,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-08 06:23:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:18,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-08 06:23:18,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2025-03-08 06:23:18,597 INFO L87 Difference]: Start difference. First operand 17169 states and 22492 transitions. Second operand has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 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 06:23:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:23:22,274 INFO L93 Difference]: Finished difference Result 53056 states and 69542 transitions. [2025-03-08 06:23:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-03-08 06:23:22,275 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 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 102 [2025-03-08 06:23:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:23:22,321 INFO L225 Difference]: With dead ends: 53056 [2025-03-08 06:23:22,321 INFO L226 Difference]: Without dead ends: 45170 [2025-03-08 06:23:22,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2882 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1953, Invalid=9389, Unknown=0, NotChecked=0, Total=11342 [2025-03-08 06:23:22,342 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1630 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:23:22,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 1686 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 06:23:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45170 states. [2025-03-08 06:23:22,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45170 to 17162. [2025-03-08 06:23:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17162 states, 17161 states have (on average 1.3102383310995862) internal successors, (22485), 17161 states have internal predecessors, (22485), 0 states have call successors, (0), 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 06:23:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17162 states to 17162 states and 22485 transitions. [2025-03-08 06:23:22,636 INFO L78 Accepts]: Start accepts. Automaton has 17162 states and 22485 transitions. Word has length 102 [2025-03-08 06:23:22,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:23:22,637 INFO L471 AbstractCegarLoop]: Abstraction has 17162 states and 22485 transitions. [2025-03-08 06:23:22,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 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 06:23:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 17162 states and 22485 transitions. [2025-03-08 06:23:22,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 06:23:22,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:23:22,639 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:23:22,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 06:23:22,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-08 06:23:22,844 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:23:22,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:23:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1062893649, now seen corresponding path program 1 times [2025-03-08 06:23:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:23:22,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441458293] [2025-03-08 06:23:22,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:23:22,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 06:23:22,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 06:23:22,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:22,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:23,125 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:23,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:23:23,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441458293] [2025-03-08 06:23:23,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441458293] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:23:23,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952901615] [2025-03-08 06:23:23,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:23:23,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:23:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:23:23,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:23:23,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:23:23,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 06:23:23,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 06:23:23,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:23:23,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:23:23,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-08 06:23:23,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:23:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:23,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:23:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:23:25,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952901615] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:23:25,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:23:25,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 15] total 41 [2025-03-08 06:23:25,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662128645] [2025-03-08 06:23:25,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:23:25,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-08 06:23:25,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:23:25,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-08 06:23:25,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1505, Unknown=0, NotChecked=0, Total=1640 [2025-03-08 06:23:25,045 INFO L87 Difference]: Start difference. First operand 17162 states and 22485 transitions. Second operand has 41 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 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 06:24:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:24:17,175 INFO L93 Difference]: Finished difference Result 286226 states and 370826 transitions. [2025-03-08 06:24:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 825 states. [2025-03-08 06:24:17,175 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 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 102 [2025-03-08 06:24:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:24:17,558 INFO L225 Difference]: With dead ends: 286226 [2025-03-08 06:24:17,558 INFO L226 Difference]: Without dead ends: 269141 [2025-03-08 06:24:17,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 862 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362460 ImplicationChecksByTransitivity, 48.2s TimeCoverageRelationStatistics Valid=64125, Invalid=681507, Unknown=0, NotChecked=0, Total=745632 [2025-03-08 06:24:17,651 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 13982 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 5450 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13982 SdHoareTripleChecker+Valid, 4270 SdHoareTripleChecker+Invalid, 5836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 5450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-03-08 06:24:17,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13982 Valid, 4270 Invalid, 5836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 5450 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-08 06:24:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269141 states. [2025-03-08 06:24:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269141 to 109258. [2025-03-08 06:24:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109258 states, 109257 states have (on average 1.3004841795033728) internal successors, (142087), 109257 states have internal predecessors, (142087), 0 states have call successors, (0), 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 06:24:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109258 states to 109258 states and 142087 transitions. [2025-03-08 06:24:19,833 INFO L78 Accepts]: Start accepts. Automaton has 109258 states and 142087 transitions. Word has length 102 [2025-03-08 06:24:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:24:19,833 INFO L471 AbstractCegarLoop]: Abstraction has 109258 states and 142087 transitions. [2025-03-08 06:24:19,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 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 06:24:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 109258 states and 142087 transitions. [2025-03-08 06:24:19,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 06:24:19,843 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:24:19,844 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:24:19,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:24:20,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:24:20,048 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2025-03-08 06:24:20,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:24:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1157518934, now seen corresponding path program 1 times [2025-03-08 06:24:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:24:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194040716] [2025-03-08 06:24:20,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:24:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:24:20,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 06:24:20,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 06:24:20,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:24:20,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:24:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:24:20,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:24:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194040716] [2025-03-08 06:24:20,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194040716] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:24:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972530901] [2025-03-08 06:24:20,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:24:20,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:24:20,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:24:20,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:24:20,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:24:20,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 06:24:20,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 06:24:20,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:24:20,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:24:20,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-08 06:24:20,858 INFO L279 TraceCheckSpWp]: Computing forward predicates...