./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77efdc70644c4d76b2b51ad31e4c72e04d88f3f8d138a44eb5f8e2813c15326a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:51:39,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:51:39,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:51:39,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:51:39,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:51:39,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:51:39,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:51:39,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:51:39,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:51:39,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:51:39,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:51:39,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:51:39,817 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:51:39,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:51:39,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:51:39,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:51:39,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:51:39,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:51:39,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:51:39,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:51:39,821 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:51:39,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:51:39,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77efdc70644c4d76b2b51ad31e4c72e04d88f3f8d138a44eb5f8e2813c15326a [2025-01-09 05:51:39,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:51:40,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:51:40,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:51:40,004 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:51:40,004 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:51:40,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2025-01-09 05:51:41,100 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3efa8922e/c8a72152fb41413baac7c624b43e3825/FLAG46d9adda7 [2025-01-09 05:51:41,650 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:51:41,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2025-01-09 05:51:41,681 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3efa8922e/c8a72152fb41413baac7c624b43e3825/FLAG46d9adda7 [2025-01-09 05:51:42,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3efa8922e/c8a72152fb41413baac7c624b43e3825 [2025-01-09 05:51:42,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:51:42,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:51:42,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:51:42,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:51:42,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:51:42,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:51:42" (1/1) ... [2025-01-09 05:51:42,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f68d2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:42, skipping insertion in model container [2025-01-09 05:51:42,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:51:42" (1/1) ... [2025-01-09 05:51:42,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:51:42,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[11668,11681] [2025-01-09 05:51:42,591 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[18604,18617] [2025-01-09 05:51:43,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:51:43,023 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:51:43,047 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[11668,11681] [2025-01-09 05:51:43,056 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[18604,18617] [2025-01-09 05:51:43,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:51:43,311 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:51:43,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43 WrapperNode [2025-01-09 05:51:43,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:51:43,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:51:43,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:51:43,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:51:43,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,643 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5091 [2025-01-09 05:51:43,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:51:43,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:51:43,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:51:43,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:51:43,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,841 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]. [2025-01-09 05:51:43,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,933 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:43,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:44,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:44,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:44,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:44,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:51:44,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:51:44,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:51:44,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:51:44,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (1/1) ... [2025-01-09 05:51:44,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:51:44,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:51:44,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:51:44,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:51:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:51:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:51:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:51:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:51:44,227 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:51:44,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:51:47,750 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2025-01-09 05:51:47,750 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:51:47,780 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:51:47,781 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 05:51:47,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:51:47 BoogieIcfgContainer [2025-01-09 05:51:47,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:51:47,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:51:47,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:51:47,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:51:47,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:51:42" (1/3) ... [2025-01-09 05:51:47,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143f9217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:51:47, skipping insertion in model container [2025-01-09 05:51:47,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:51:43" (2/3) ... [2025-01-09 05:51:47,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143f9217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:51:47, skipping insertion in model container [2025-01-09 05:51:47,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:51:47" (3/3) ... [2025-01-09 05:51:47,791 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2025-01-09 05:51:47,801 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:51:47,804 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-09 05:51:47,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:51:47,863 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;@53a5eb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:51:47,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:51:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9030100334448161) internal successors, (1707), 899 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 05:51:47,873 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:47,874 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] [2025-01-09 05:51:47,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:47,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 147233052, now seen corresponding path program 1 times [2025-01-09 05:51:47,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:47,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082807734] [2025-01-09 05:51:47,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:47,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:47,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 05:51:47,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 05:51:47,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:47,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:48,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:48,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082807734] [2025-01-09 05:51:48,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082807734] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:48,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:48,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:51:48,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43454343] [2025-01-09 05:51:48,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:48,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:51:48,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:48,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:51:48,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:51:48,094 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9030100334448161) internal successors, (1707), 899 states have internal predecessors, (1707), 0 states have call successors, (0), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:48,160 INFO L93 Difference]: Finished difference Result 1762 states and 3343 transitions. [2025-01-09 05:51:48,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:51:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2025-01-09 05:51:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:48,174 INFO L225 Difference]: With dead ends: 1762 [2025-01-09 05:51:48,174 INFO L226 Difference]: Without dead ends: 835 [2025-01-09 05:51:48,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:51:48,180 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:48,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2025-01-09 05:51:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2025-01-09 05:51:48,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2025-01-09 05:51:48,270 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2025-01-09 05:51:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:48,271 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2025-01-09 05:51:48,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2025-01-09 05:51:48,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 05:51:48,273 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:48,273 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] [2025-01-09 05:51:48,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:51:48,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:48,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:48,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1846911654, now seen corresponding path program 1 times [2025-01-09 05:51:48,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:48,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598218937] [2025-01-09 05:51:48,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:48,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:48,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 05:51:48,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 05:51:48,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:48,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:48,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:48,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598218937] [2025-01-09 05:51:48,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598218937] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:48,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:48,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:51:48,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813424331] [2025-01-09 05:51:48,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:48,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:51:48,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:48,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:51:48,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:51:48,461 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:48,602 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2025-01-09 05:51:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 05:51:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2025-01-09 05:51:48,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:48,612 INFO L225 Difference]: With dead ends: 883 [2025-01-09 05:51:48,612 INFO L226 Difference]: Without dead ends: 835 [2025-01-09 05:51:48,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:51:48,613 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:48,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:48,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2025-01-09 05:51:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2025-01-09 05:51:48,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2025-01-09 05:51:48,656 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2025-01-09 05:51:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:48,656 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2025-01-09 05:51:48,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2025-01-09 05:51:48,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-01-09 05:51:48,663 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:48,663 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] [2025-01-09 05:51:48,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:51:48,663 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:48,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash 427928945, now seen corresponding path program 1 times [2025-01-09 05:51:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280761700] [2025-01-09 05:51:48,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:48,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-09 05:51:48,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-09 05:51:48,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:48,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:49,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:49,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280761700] [2025-01-09 05:51:49,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280761700] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:49,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:49,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896257535] [2025-01-09 05:51:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:49,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:49,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:49,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:49,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:49,083 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2025-01-09 05:51:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:49,404 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2025-01-09 05:51:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 05:51:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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 [2025-01-09 05:51:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:49,410 INFO L225 Difference]: With dead ends: 1275 [2025-01-09 05:51:49,410 INFO L226 Difference]: Without dead ends: 1231 [2025-01-09 05:51:49,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2025-01-09 05:51:49,411 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:49,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 05:51:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2025-01-09 05:51:49,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2025-01-09 05:51:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2025-01-09 05:51:49,435 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2025-01-09 05:51:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:49,435 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2025-01-09 05:51:49,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2025-01-09 05:51:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2025-01-09 05:51:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-09 05:51:49,437 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:49,437 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] [2025-01-09 05:51:49,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:51:49,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:49,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1802126305, now seen corresponding path program 1 times [2025-01-09 05:51:49,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:49,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877140882] [2025-01-09 05:51:49,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:49,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:49,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-09 05:51:49,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-09 05:51:49,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:49,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:49,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:49,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:49,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877140882] [2025-01-09 05:51:49,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877140882] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:49,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:49,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032834951] [2025-01-09 05:51:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:49,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:49,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:49,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:49,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:49,522 INFO L87 Difference]: Start difference. First operand 877 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:49,554 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2025-01-09 05:51:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:49,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2025-01-09 05:51:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:49,558 INFO L225 Difference]: With dead ends: 1038 [2025-01-09 05:51:49,558 INFO L226 Difference]: Without dead ends: 952 [2025-01-09 05:51:49,559 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 [2025-01-09 05:51:49,562 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:49,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2025-01-09 05:51:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2025-01-09 05:51:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2025-01-09 05:51:49,586 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2025-01-09 05:51:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:49,588 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2025-01-09 05:51:49,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2025-01-09 05:51:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-09 05:51:49,590 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:49,590 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] [2025-01-09 05:51:49,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:51:49,590 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:49,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:49,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1868619817, now seen corresponding path program 1 times [2025-01-09 05:51:49,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:49,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541825892] [2025-01-09 05:51:49,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:49,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:49,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-09 05:51:49,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-09 05:51:49,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:49,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541825892] [2025-01-09 05:51:50,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541825892] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:50,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248632001] [2025-01-09 05:51:50,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:50,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:50,051 INFO L87 Difference]: Start difference. First operand 948 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,231 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2025-01-09 05:51:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:50,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2025-01-09 05:51:50,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,235 INFO L225 Difference]: With dead ends: 1107 [2025-01-09 05:51:50,235 INFO L226 Difference]: Without dead ends: 950 [2025-01-09 05:51:50,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-01-09 05:51:50,237 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 5976 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5976 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5976 Valid, 1804 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2025-01-09 05:51:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2025-01-09 05:51:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2025-01-09 05:51:50,255 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2025-01-09 05:51:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,255 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2025-01-09 05:51:50,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2025-01-09 05:51:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-09 05:51:50,257 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,257 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] [2025-01-09 05:51:50,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:51:50,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1677916402, now seen corresponding path program 1 times [2025-01-09 05:51:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922164948] [2025-01-09 05:51:50,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-09 05:51:50,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-09 05:51:50,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922164948] [2025-01-09 05:51:50,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922164948] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 05:51:50,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771266010] [2025-01-09 05:51:50,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 05:51:50,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 05:51:50,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 05:51:50,481 INFO L87 Difference]: Start difference. First operand 948 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,530 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2025-01-09 05:51:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 05:51:50,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2025-01-09 05:51:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,534 INFO L225 Difference]: With dead ends: 956 [2025-01-09 05:51:50,534 INFO L226 Difference]: Without dead ends: 954 [2025-01-09 05:51:50,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 05:51:50,535 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2025-01-09 05:51:50,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2025-01-09 05:51:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2025-01-09 05:51:50,550 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2025-01-09 05:51:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,550 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2025-01-09 05:51:50,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2025-01-09 05:51:50,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-09 05:51:50,551 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,551 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] [2025-01-09 05:51:50,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:51:50,551 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1113103913, now seen corresponding path program 1 times [2025-01-09 05:51:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061943641] [2025-01-09 05:51:50,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-09 05:51:50,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-09 05:51:50,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061943641] [2025-01-09 05:51:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061943641] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:50,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905928727] [2025-01-09 05:51:50,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:50,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:50,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:50,597 INFO L87 Difference]: Start difference. First operand 954 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,616 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2025-01-09 05:51:50,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:50,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2025-01-09 05:51:50,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,620 INFO L225 Difference]: With dead ends: 1264 [2025-01-09 05:51:50,620 INFO L226 Difference]: Without dead ends: 1101 [2025-01-09 05:51:50,620 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 [2025-01-09 05:51:50,621 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2025-01-09 05:51:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2025-01-09 05:51:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2025-01-09 05:51:50,637 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2025-01-09 05:51:50,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,637 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2025-01-09 05:51:50,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2025-01-09 05:51:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-09 05:51:50,638 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,638 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] [2025-01-09 05:51:50,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:51:50,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1943601367, now seen corresponding path program 1 times [2025-01-09 05:51:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263746864] [2025-01-09 05:51:50,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-09 05:51:50,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-09 05:51:50,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263746864] [2025-01-09 05:51:50,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263746864] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:50,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100351231] [2025-01-09 05:51:50,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:50,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:50,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:50,679 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,700 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2025-01-09 05:51:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:50,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2025-01-09 05:51:50,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,705 INFO L225 Difference]: With dead ends: 1683 [2025-01-09 05:51:50,705 INFO L226 Difference]: Without dead ends: 1375 [2025-01-09 05:51:50,706 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 [2025-01-09 05:51:50,706 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:50,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2025-01-09 05:51:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2025-01-09 05:51:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2025-01-09 05:51:50,729 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2025-01-09 05:51:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,729 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2025-01-09 05:51:50,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2025-01-09 05:51:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-09 05:51:50,730 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,730 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] [2025-01-09 05:51:50,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:51:50,730 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 135897129, now seen corresponding path program 1 times [2025-01-09 05:51:50,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009235275] [2025-01-09 05:51:50,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-09 05:51:50,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-09 05:51:50,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009235275] [2025-01-09 05:51:50,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009235275] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:50,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051886218] [2025-01-09 05:51:50,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:50,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:50,768 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,791 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2025-01-09 05:51:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:50,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2025-01-09 05:51:50,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,797 INFO L225 Difference]: With dead ends: 2473 [2025-01-09 05:51:50,797 INFO L226 Difference]: Without dead ends: 1891 [2025-01-09 05:51:50,798 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 [2025-01-09 05:51:50,798 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2025-01-09 05:51:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2025-01-09 05:51:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2025-01-09 05:51:50,829 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2025-01-09 05:51:50,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,829 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2025-01-09 05:51:50,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2025-01-09 05:51:50,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-09 05:51:50,830 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,830 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] [2025-01-09 05:51:50,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:51:50,830 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1916829993, now seen corresponding path program 1 times [2025-01-09 05:51:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347068152] [2025-01-09 05:51:50,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-09 05:51:50,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-09 05:51:50,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347068152] [2025-01-09 05:51:50,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347068152] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:50,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219039352] [2025-01-09 05:51:50,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:50,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:50,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:50,866 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:50,899 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2025-01-09 05:51:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:50,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2025-01-09 05:51:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:50,907 INFO L225 Difference]: With dead ends: 3957 [2025-01-09 05:51:50,907 INFO L226 Difference]: Without dead ends: 2859 [2025-01-09 05:51:50,909 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 [2025-01-09 05:51:50,909 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:50,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:50,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2025-01-09 05:51:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2025-01-09 05:51:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2025-01-09 05:51:50,958 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2025-01-09 05:51:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:50,959 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2025-01-09 05:51:50,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2025-01-09 05:51:50,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-01-09 05:51:50,959 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:50,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:50,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:51:50,960 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:50,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash -275603324, now seen corresponding path program 1 times [2025-01-09 05:51:50,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:50,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970593513] [2025-01-09 05:51:50,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:50,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:50,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-01-09 05:51:50,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-01-09 05:51:50,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:50,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:50,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970593513] [2025-01-09 05:51:50,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970593513] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:50,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:50,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:50,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746360293] [2025-01-09 05:51:50,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:50,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:50,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:50,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:50,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:50,994 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:51,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:51,034 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2025-01-09 05:51:51,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:51,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2025-01-09 05:51:51,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:51,044 INFO L225 Difference]: With dead ends: 5040 [2025-01-09 05:51:51,045 INFO L226 Difference]: Without dead ends: 3853 [2025-01-09 05:51:51,046 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 [2025-01-09 05:51:51,047 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:51,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:51,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2025-01-09 05:51:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2025-01-09 05:51:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2025-01-09 05:51:51,111 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2025-01-09 05:51:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:51,111 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2025-01-09 05:51:51,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2025-01-09 05:51:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-01-09 05:51:51,112 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:51,112 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:51,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:51:51,112 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:51,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash -792988928, now seen corresponding path program 1 times [2025-01-09 05:51:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022986322] [2025-01-09 05:51:51,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:51,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-01-09 05:51:51,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-01-09 05:51:51,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:51,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:51,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:51,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022986322] [2025-01-09 05:51:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022986322] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:51,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:51,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:51:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431357349] [2025-01-09 05:51:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:51,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:51,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:51,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:51,151 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:53,943 INFO L93 Difference]: Finished difference Result 5355 states and 8704 transitions. [2025-01-09 05:51:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:53,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2025-01-09 05:51:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:53,955 INFO L225 Difference]: With dead ends: 5355 [2025-01-09 05:51:53,955 INFO L226 Difference]: Without dead ends: 4602 [2025-01-09 05:51:53,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:53,957 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:53,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 582 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-09 05:51:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2025-01-09 05:51:54,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4602. [2025-01-09 05:51:54,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.4804347826086957) internal successors, (6810), 4601 states have internal predecessors, (6810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6810 transitions. [2025-01-09 05:51:54,029 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6810 transitions. Word has length 60 [2025-01-09 05:51:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:54,029 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6810 transitions. [2025-01-09 05:51:54,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6810 transitions. [2025-01-09 05:51:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 05:51:54,031 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:54,031 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:54,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 05:51:54,031 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:54,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash -925514908, now seen corresponding path program 1 times [2025-01-09 05:51:54,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:54,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591477668] [2025-01-09 05:51:54,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:54,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:54,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 05:51:54,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 05:51:54,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:54,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 05:51:54,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:54,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591477668] [2025-01-09 05:51:54,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591477668] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:54,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:54,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:54,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875065650] [2025-01-09 05:51:54,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:54,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:54,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:54,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:54,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:54,133 INFO L87 Difference]: Start difference. First operand 4602 states and 6810 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2025-01-09 05:51:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:54,340 INFO L93 Difference]: Finished difference Result 20550 states and 29472 transitions. [2025-01-09 05:51:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:54,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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 77 [2025-01-09 05:51:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:54,371 INFO L225 Difference]: With dead ends: 20550 [2025-01-09 05:51:54,372 INFO L226 Difference]: Without dead ends: 17492 [2025-01-09 05:51:54,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 05:51:54,380 INFO L435 NwaCegarLoop]: 1612 mSDtfsCounter, 6329 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6329 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:54,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6329 Valid, 3658 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:54,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17492 states. [2025-01-09 05:51:54,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17492 to 7658. [2025-01-09 05:51:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7658 states, 7656 states have (on average 1.4516718913270636) internal successors, (11114), 7657 states have internal predecessors, (11114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7658 states to 7658 states and 11114 transitions. [2025-01-09 05:51:54,539 INFO L78 Accepts]: Start accepts. Automaton has 7658 states and 11114 transitions. Word has length 77 [2025-01-09 05:51:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:54,539 INFO L471 AbstractCegarLoop]: Abstraction has 7658 states and 11114 transitions. [2025-01-09 05:51:54,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2025-01-09 05:51:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 7658 states and 11114 transitions. [2025-01-09 05:51:54,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 05:51:54,541 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:54,541 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:54,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 05:51:54,541 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:54,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:54,541 INFO L85 PathProgramCache]: Analyzing trace with hash 312747108, now seen corresponding path program 1 times [2025-01-09 05:51:54,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:54,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489030651] [2025-01-09 05:51:54,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:54,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:54,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 05:51:54,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 05:51:54,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:54,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 05:51:54,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:54,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489030651] [2025-01-09 05:51:54,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489030651] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:54,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:54,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:54,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105906182] [2025-01-09 05:51:54,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:54,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:54,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:54,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:54,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:54,640 INFO L87 Difference]: Start difference. First operand 7658 states and 11114 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 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) [2025-01-09 05:51:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:54,944 INFO L93 Difference]: Finished difference Result 23606 states and 33776 transitions. [2025-01-09 05:51:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 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 77 [2025-01-09 05:51:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:54,973 INFO L225 Difference]: With dead ends: 23606 [2025-01-09 05:51:54,974 INFO L226 Difference]: Without dead ends: 20548 [2025-01-09 05:51:54,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 05:51:54,982 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6354 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6354 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:54,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6354 Valid, 3586 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:54,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20548 states. [2025-01-09 05:51:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20548 to 12250. [2025-01-09 05:51:55,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12250 states, 12248 states have (on average 1.4312540822991509) internal successors, (17530), 12249 states have internal predecessors, (17530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 17530 transitions. [2025-01-09 05:51:55,186 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 17530 transitions. Word has length 77 [2025-01-09 05:51:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:55,186 INFO L471 AbstractCegarLoop]: Abstraction has 12250 states and 17530 transitions. [2025-01-09 05:51:55,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 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) [2025-01-09 05:51:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 17530 transitions. [2025-01-09 05:51:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 05:51:55,188 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:55,188 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:55,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 05:51:55,189 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:55,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1902721692, now seen corresponding path program 1 times [2025-01-09 05:51:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:55,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987975119] [2025-01-09 05:51:55,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:55,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 05:51:55,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 05:51:55,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:55,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-09 05:51:55,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:55,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987975119] [2025-01-09 05:51:55,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987975119] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:55,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:55,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:55,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725819251] [2025-01-09 05:51:55,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:55,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:55,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:55,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:55,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:55,285 INFO L87 Difference]: Start difference. First operand 12250 states and 17530 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:55,658 INFO L93 Difference]: Finished difference Result 26662 states and 38080 transitions. [2025-01-09 05:51:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:55,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 [2025-01-09 05:51:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:55,688 INFO L225 Difference]: With dead ends: 26662 [2025-01-09 05:51:55,688 INFO L226 Difference]: Without dead ends: 23604 [2025-01-09 05:51:55,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 05:51:55,693 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6401 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6401 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:55,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6401 Valid, 3558 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23604 states. [2025-01-09 05:51:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23604 to 15306. [2025-01-09 05:51:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15306 states, 15304 states have (on average 1.4266858337689492) internal successors, (21834), 15305 states have internal predecessors, (21834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15306 states to 15306 states and 21834 transitions. [2025-01-09 05:51:56,068 INFO L78 Accepts]: Start accepts. Automaton has 15306 states and 21834 transitions. Word has length 77 [2025-01-09 05:51:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:56,068 INFO L471 AbstractCegarLoop]: Abstraction has 15306 states and 21834 transitions. [2025-01-09 05:51:56,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 15306 states and 21834 transitions. [2025-01-09 05:51:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 05:51:56,070 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:56,070 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:56,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 05:51:56,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:56,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash -121788828, now seen corresponding path program 1 times [2025-01-09 05:51:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208731178] [2025-01-09 05:51:56,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:56,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 05:51:56,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 05:51:56,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:56,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 05:51:56,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:56,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208731178] [2025-01-09 05:51:56,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208731178] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:56,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:56,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:56,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654960079] [2025-01-09 05:51:56,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:56,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:56,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:56,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:56,184 INFO L87 Difference]: Start difference. First operand 15306 states and 21834 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:56,498 INFO L93 Difference]: Finished difference Result 29718 states and 42384 transitions. [2025-01-09 05:51:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2025-01-09 05:51:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:56,535 INFO L225 Difference]: With dead ends: 29718 [2025-01-09 05:51:56,536 INFO L226 Difference]: Without dead ends: 26660 [2025-01-09 05:51:56,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 05:51:56,546 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6347 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:56,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3621 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26660 states. [2025-01-09 05:51:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26660 to 18362. [2025-01-09 05:51:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 18360 states have (on average 1.4236383442265794) internal successors, (26138), 18361 states have internal predecessors, (26138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 26138 transitions. [2025-01-09 05:51:56,946 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 26138 transitions. Word has length 77 [2025-01-09 05:51:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:56,946 INFO L471 AbstractCegarLoop]: Abstraction has 18362 states and 26138 transitions. [2025-01-09 05:51:56,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 26138 transitions. [2025-01-09 05:51:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-01-09 05:51:56,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:56,949 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:56,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 05:51:56,949 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:56,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash -883203329, now seen corresponding path program 1 times [2025-01-09 05:51:56,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:56,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953347646] [2025-01-09 05:51:56,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:56,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:56,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-09 05:51:56,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 05:51:56,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:56,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 05:51:57,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:57,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953347646] [2025-01-09 05:51:57,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953347646] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:57,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:57,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 05:51:57,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451554709] [2025-01-09 05:51:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:57,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 05:51:57,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:57,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 05:51:57,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 05:51:57,050 INFO L87 Difference]: Start difference. First operand 18362 states and 26138 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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) [2025-01-09 05:51:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:57,407 INFO L93 Difference]: Finished difference Result 31014 states and 44256 transitions. [2025-01-09 05:51:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 05:51:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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 79 [2025-01-09 05:51:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:57,446 INFO L225 Difference]: With dead ends: 31014 [2025-01-09 05:51:57,446 INFO L226 Difference]: Without dead ends: 28836 [2025-01-09 05:51:57,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 05:51:57,457 INFO L435 NwaCegarLoop]: 1614 mSDtfsCounter, 6324 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6324 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:57,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6324 Valid, 3756 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:51:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28836 states. [2025-01-09 05:51:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28836 to 20538. [2025-01-09 05:51:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20538 states, 20536 states have (on average 1.4239384495520062) internal successors, (29242), 20537 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:58,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20538 states to 20538 states and 29242 transitions. [2025-01-09 05:51:58,228 INFO L78 Accepts]: Start accepts. Automaton has 20538 states and 29242 transitions. Word has length 79 [2025-01-09 05:51:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:58,228 INFO L471 AbstractCegarLoop]: Abstraction has 20538 states and 29242 transitions. [2025-01-09 05:51:58,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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) [2025-01-09 05:51:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 20538 states and 29242 transitions. [2025-01-09 05:51:58,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-01-09 05:51:58,231 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:58,231 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:58,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 05:51:58,231 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:58,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1710799524, now seen corresponding path program 1 times [2025-01-09 05:51:58,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:58,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435858106] [2025-01-09 05:51:58,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:58,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:58,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-09 05:51:58,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 05:51:58,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:58,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:58,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:58,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435858106] [2025-01-09 05:51:58,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435858106] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:58,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:58,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:58,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661962714] [2025-01-09 05:51:58,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:58,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:58,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:58,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:58,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:58,302 INFO L87 Difference]: Start difference. First operand 20538 states and 29242 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:58,467 INFO L93 Difference]: Finished difference Result 34706 states and 49441 transitions. [2025-01-09 05:51:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2025-01-09 05:51:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:58,488 INFO L225 Difference]: With dead ends: 34706 [2025-01-09 05:51:58,488 INFO L226 Difference]: Without dead ends: 15712 [2025-01-09 05:51:58,503 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 [2025-01-09 05:51:58,504 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:58,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15712 states. [2025-01-09 05:51:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15712 to 15710. [2025-01-09 05:51:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 15708 states have (on average 1.4289533995416348) internal successors, (22446), 15709 states have internal predecessors, (22446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 22446 transitions. [2025-01-09 05:51:58,886 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 22446 transitions. Word has length 79 [2025-01-09 05:51:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:58,886 INFO L471 AbstractCegarLoop]: Abstraction has 15710 states and 22446 transitions. [2025-01-09 05:51:58,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:58,886 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 22446 transitions. [2025-01-09 05:51:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-01-09 05:51:58,887 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:58,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:58,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 05:51:58,888 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:58,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:58,889 INFO L85 PathProgramCache]: Analyzing trace with hash -594113331, now seen corresponding path program 1 times [2025-01-09 05:51:58,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:58,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672483514] [2025-01-09 05:51:58,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:58,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:58,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-09 05:51:58,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-09 05:51:58,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:58,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:58,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:58,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672483514] [2025-01-09 05:51:58,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672483514] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:58,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:58,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:58,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169791591] [2025-01-09 05:51:58,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:58,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:58,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:58,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:58,957 INFO L87 Difference]: Start difference. First operand 15710 states and 22446 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:59,050 INFO L93 Difference]: Finished difference Result 22786 states and 32432 transitions. [2025-01-09 05:51:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2025-01-09 05:51:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:59,059 INFO L225 Difference]: With dead ends: 22786 [2025-01-09 05:51:59,060 INFO L226 Difference]: Without dead ends: 8640 [2025-01-09 05:51:59,069 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 [2025-01-09 05:51:59,069 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:59,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:59,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2025-01-09 05:51:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 8638. [2025-01-09 05:51:59,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8638 states, 8636 states have (on average 1.4309865678554887) internal successors, (12358), 8637 states have internal predecessors, (12358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12358 transitions. [2025-01-09 05:51:59,195 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12358 transitions. Word has length 80 [2025-01-09 05:51:59,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:59,195 INFO L471 AbstractCegarLoop]: Abstraction has 8638 states and 12358 transitions. [2025-01-09 05:51:59,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12358 transitions. [2025-01-09 05:51:59,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-09 05:51:59,196 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:59,196 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:59,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 05:51:59,197 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:59,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1560227327, now seen corresponding path program 1 times [2025-01-09 05:51:59,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:59,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191953615] [2025-01-09 05:51:59,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:59,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:59,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 05:51:59,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 05:51:59,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:59,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:59,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:59,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191953615] [2025-01-09 05:51:59,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191953615] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:59,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:59,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:59,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898385855] [2025-01-09 05:51:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:59,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:59,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:59,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:59,263 INFO L87 Difference]: Start difference. First operand 8638 states and 12358 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:59,363 INFO L93 Difference]: Finished difference Result 12178 states and 17300 transitions. [2025-01-09 05:51:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:59,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2025-01-09 05:51:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:59,371 INFO L225 Difference]: With dead ends: 12178 [2025-01-09 05:51:59,371 INFO L226 Difference]: Without dead ends: 5104 [2025-01-09 05:51:59,376 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 [2025-01-09 05:51:59,377 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:59,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2025-01-09 05:51:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5102. [2025-01-09 05:51:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 5100 states have (on average 1.444313725490196) internal successors, (7366), 5101 states have internal predecessors, (7366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 7366 transitions. [2025-01-09 05:51:59,484 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 7366 transitions. Word has length 82 [2025-01-09 05:51:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:59,484 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 7366 transitions. [2025-01-09 05:51:59,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 7366 transitions. [2025-01-09 05:51:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 05:51:59,487 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:59,488 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:59,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 05:51:59,489 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:59,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash -370457167, now seen corresponding path program 1 times [2025-01-09 05:51:59,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:59,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100602507] [2025-01-09 05:51:59,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:59,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:59,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 05:51:59,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 05:51:59,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:59,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:59,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100602507] [2025-01-09 05:51:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100602507] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755386841] [2025-01-09 05:51:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:59,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:59,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:59,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:59,571 INFO L87 Difference]: Start difference. First operand 5102 states and 7366 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:59,622 INFO L93 Difference]: Finished difference Result 6874 states and 9812 transitions. [2025-01-09 05:51:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2025-01-09 05:51:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:59,628 INFO L225 Difference]: With dead ends: 6874 [2025-01-09 05:51:59,628 INFO L226 Difference]: Without dead ends: 3336 [2025-01-09 05:51:59,632 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 [2025-01-09 05:51:59,632 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:59,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2025-01-09 05:51:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3334. [2025-01-09 05:51:59,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 1.469387755102041) internal successors, (4896), 3333 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4896 transitions. [2025-01-09 05:51:59,692 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4896 transitions. Word has length 84 [2025-01-09 05:51:59,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:59,693 INFO L471 AbstractCegarLoop]: Abstraction has 3334 states and 4896 transitions. [2025-01-09 05:51:59,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4896 transitions. [2025-01-09 05:51:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 05:51:59,695 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:59,695 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] [2025-01-09 05:51:59,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 05:51:59,695 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1277561885, now seen corresponding path program 1 times [2025-01-09 05:51:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:59,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450508514] [2025-01-09 05:51:59,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:59,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 05:51:59,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 05:51:59,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:59,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:51:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:51:59,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:51:59,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450508514] [2025-01-09 05:51:59,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450508514] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:51:59,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:51:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:51:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010434282] [2025-01-09 05:51:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:51:59,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:51:59,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:51:59,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:51:59,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:51:59,775 INFO L87 Difference]: Start difference. First operand 3334 states and 4896 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:51:59,813 INFO L93 Difference]: Finished difference Result 4222 states and 6107 transitions. [2025-01-09 05:51:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:51:59,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2025-01-09 05:51:59,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:51:59,819 INFO L225 Difference]: With dead ends: 4222 [2025-01-09 05:51:59,819 INFO L226 Difference]: Without dead ends: 2452 [2025-01-09 05:51:59,821 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 [2025-01-09 05:51:59,823 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:51:59,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:51:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2025-01-09 05:51:59,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2450. [2025-01-09 05:51:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 1.5008169934640523) internal successors, (3674), 2449 states have internal predecessors, (3674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3674 transitions. [2025-01-09 05:51:59,865 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3674 transitions. Word has length 86 [2025-01-09 05:51:59,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:51:59,865 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3674 transitions. [2025-01-09 05:51:59,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:51:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3674 transitions. [2025-01-09 05:51:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:51:59,867 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:51:59,867 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:51:59,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-09 05:51:59,867 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:51:59,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:51:59,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1236424853, now seen corresponding path program 1 times [2025-01-09 05:51:59,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:51:59,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729442274] [2025-01-09 05:51:59,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:51:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:51:59,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:51:59,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:51:59,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:51:59,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:00,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:52:00,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729442274] [2025-01-09 05:52:00,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729442274] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 05:52:00,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713049112] [2025-01-09 05:52:00,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:00,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:52:00,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 05:52:00,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 05:52:00,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:52:00,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:52:00,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:00,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:00,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 05:52:00,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:52:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:01,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 05:52:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:02,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713049112] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 05:52:02,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 05:52:02,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2025-01-09 05:52:02,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775165044] [2025-01-09 05:52:02,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 05:52:02,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-09 05:52:02,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:52:02,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-09 05:52:02,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2025-01-09 05:52:02,202 INFO L87 Difference]: Start difference. First operand 2450 states and 3674 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:52:03,560 INFO L93 Difference]: Finished difference Result 6208 states and 8738 transitions. [2025-01-09 05:52:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 05:52:03,561 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 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 88 [2025-01-09 05:52:03,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:52:03,569 INFO L225 Difference]: With dead ends: 6208 [2025-01-09 05:52:03,569 INFO L226 Difference]: Without dead ends: 5322 [2025-01-09 05:52:03,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2025-01-09 05:52:03,573 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 14399 mSDsluCounter, 6329 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14399 SdHoareTripleChecker+Valid, 7831 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 05:52:03,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14399 Valid, 7831 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 05:52:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2025-01-09 05:52:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 5284. [2025-01-09 05:52:03,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 5282 states have (on average 1.4117758424839075) internal successors, (7457), 5283 states have internal predecessors, (7457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 7457 transitions. [2025-01-09 05:52:03,708 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 7457 transitions. Word has length 88 [2025-01-09 05:52:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:52:03,709 INFO L471 AbstractCegarLoop]: Abstraction has 5284 states and 7457 transitions. [2025-01-09 05:52:03,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 7457 transitions. [2025-01-09 05:52:03,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-09 05:52:03,711 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:52:03,711 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:52:03,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 05:52:03,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-09 05:52:03,915 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:52:03,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:52:03,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1008908801, now seen corresponding path program 1 times [2025-01-09 05:52:03,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:52:03,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086505734] [2025-01-09 05:52:03,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:03,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:52:03,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 05:52:03,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 05:52:03,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:03,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:52:04,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086505734] [2025-01-09 05:52:04,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086505734] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 05:52:04,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562106795] [2025-01-09 05:52:04,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:04,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:52:04,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 05:52:04,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 05:52:04,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 05:52:04,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 05:52:04,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:04,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:04,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 05:52:04,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:52:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 05:52:04,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 05:52:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 05:52:04,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562106795] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 05:52:04,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 05:52:04,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2025-01-09 05:52:04,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134513140] [2025-01-09 05:52:04,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 05:52:04,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 05:52:04,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:52:04,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 05:52:04,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-01-09 05:52:04,608 INFO L87 Difference]: Start difference. First operand 5284 states and 7457 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:06,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:52:06,150 INFO L93 Difference]: Finished difference Result 28358 states and 37918 transitions. [2025-01-09 05:52:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-09 05:52:06,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 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 89 [2025-01-09 05:52:06,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:52:06,203 INFO L225 Difference]: With dead ends: 28358 [2025-01-09 05:52:06,207 INFO L226 Difference]: Without dead ends: 24638 [2025-01-09 05:52:06,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2025-01-09 05:52:06,227 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 11637 mSDsluCounter, 7983 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11637 SdHoareTripleChecker+Valid, 9529 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:52:06,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11637 Valid, 9529 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:52:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24638 states. [2025-01-09 05:52:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24638 to 24512. [2025-01-09 05:52:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24512 states, 24510 states have (on average 1.2789473684210526) internal successors, (31347), 24511 states have internal predecessors, (31347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24512 states to 24512 states and 31347 transitions. [2025-01-09 05:52:06,874 INFO L78 Accepts]: Start accepts. Automaton has 24512 states and 31347 transitions. Word has length 89 [2025-01-09 05:52:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:52:06,874 INFO L471 AbstractCegarLoop]: Abstraction has 24512 states and 31347 transitions. [2025-01-09 05:52:06,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 24512 states and 31347 transitions. [2025-01-09 05:52:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-09 05:52:06,876 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:52:06,876 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:52:06,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 05:52:07,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:07,080 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:52:07,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:52:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash -472155423, now seen corresponding path program 1 times [2025-01-09 05:52:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:52:07,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329407374] [2025-01-09 05:52:07,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:07,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:52:07,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 05:52:07,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 05:52:07,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:07,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:07,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:52:07,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329407374] [2025-01-09 05:52:07,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329407374] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 05:52:07,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181560474] [2025-01-09 05:52:07,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:07,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:07,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:52:07,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 05:52:07,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 05:52:07,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 05:52:07,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 05:52:07,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:07,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:07,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 05:52:07,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:52:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:08,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 05:52:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:09,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181560474] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 05:52:09,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 05:52:09,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2025-01-09 05:52:09,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770745522] [2025-01-09 05:52:09,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 05:52:09,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 05:52:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:52:09,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 05:52:09,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2025-01-09 05:52:09,211 INFO L87 Difference]: Start difference. First operand 24512 states and 31347 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:52:10,311 INFO L93 Difference]: Finished difference Result 70014 states and 89003 transitions. [2025-01-09 05:52:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 05:52:10,311 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 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 89 [2025-01-09 05:52:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:52:10,352 INFO L225 Difference]: With dead ends: 70014 [2025-01-09 05:52:10,352 INFO L226 Difference]: Without dead ends: 48227 [2025-01-09 05:52:10,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-01-09 05:52:10,367 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 9247 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9247 SdHoareTripleChecker+Valid, 4785 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 05:52:10,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9247 Valid, 4785 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 05:52:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48227 states. [2025-01-09 05:52:11,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48227 to 47631. [2025-01-09 05:52:11,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47631 states, 47629 states have (on average 1.2555795838669719) internal successors, (59802), 47630 states have internal predecessors, (59802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47631 states to 47631 states and 59802 transitions. [2025-01-09 05:52:11,688 INFO L78 Accepts]: Start accepts. Automaton has 47631 states and 59802 transitions. Word has length 89 [2025-01-09 05:52:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:52:11,688 INFO L471 AbstractCegarLoop]: Abstraction has 47631 states and 59802 transitions. [2025-01-09 05:52:11,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 47631 states and 59802 transitions. [2025-01-09 05:52:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-01-09 05:52:11,695 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:52:11,695 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:52:11,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 05:52:11,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:11,896 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:52:11,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:52:11,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1755296695, now seen corresponding path program 1 times [2025-01-09 05:52:11,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:52:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316266885] [2025-01-09 05:52:11,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:52:11,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 05:52:11,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 05:52:11,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:11,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:12,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:52:12,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316266885] [2025-01-09 05:52:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316266885] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 05:52:12,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146302735] [2025-01-09 05:52:12,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:12,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:12,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:52:12,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 05:52:12,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 05:52:12,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 05:52:12,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 05:52:12,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:12,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:12,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-09 05:52:12,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:52:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:12,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 05:52:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146302735] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 05:52:13,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 05:52:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2025-01-09 05:52:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5749633] [2025-01-09 05:52:13,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 05:52:13,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 05:52:13,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:52:13,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 05:52:13,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2025-01-09 05:52:13,406 INFO L87 Difference]: Start difference. First operand 47631 states and 59802 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:52:15,987 INFO L93 Difference]: Finished difference Result 133463 states and 167319 transitions. [2025-01-09 05:52:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 05:52:15,989 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 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 90 [2025-01-09 05:52:15,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:52:16,093 INFO L225 Difference]: With dead ends: 133463 [2025-01-09 05:52:16,093 INFO L226 Difference]: Without dead ends: 94782 [2025-01-09 05:52:16,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2025-01-09 05:52:16,117 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 18349 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18349 SdHoareTripleChecker+Valid, 6351 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:52:16,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18349 Valid, 6351 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:52:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94782 states. [2025-01-09 05:52:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94782 to 93594. [2025-01-09 05:52:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93594 states, 93592 states have (on average 1.2366548422942132) internal successors, (115741), 93593 states have internal predecessors, (115741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93594 states to 93594 states and 115741 transitions. [2025-01-09 05:52:18,601 INFO L78 Accepts]: Start accepts. Automaton has 93594 states and 115741 transitions. Word has length 90 [2025-01-09 05:52:18,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:52:18,602 INFO L471 AbstractCegarLoop]: Abstraction has 93594 states and 115741 transitions. [2025-01-09 05:52:18,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:52:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 93594 states and 115741 transitions. [2025-01-09 05:52:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 05:52:18,608 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:52:18,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:52:18,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 05:52:18,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-09 05:52:18,809 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:52:18,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:52:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash 14662161, now seen corresponding path program 1 times [2025-01-09 05:52:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:52:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044625875] [2025-01-09 05:52:18,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:52:18,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 05:52:18,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 05:52:18,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:18,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:52:19,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:52:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044625875] [2025-01-09 05:52:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044625875] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 05:52:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472373332] [2025-01-09 05:52:19,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:52:19,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 05:52:19,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:52:19,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 05:52:19,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 05:52:19,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 05:52:19,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 05:52:19,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:52:19,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:52:19,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-01-09 05:52:19,411 INFO L279 TraceCheckSpWp]: Computing forward predicates...