./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:53:34,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:53:34,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:53:34,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:53:34,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:53:34,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:53:34,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:53:34,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:53:34,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:53:34,053 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:53:34,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:53:34,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:53:34,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:53:34,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:53:34,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:53:34,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:53:34,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:53:34,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:53:34,056 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61 [2025-02-07 23:53:34,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:53:34,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:53:34,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:53:34,233 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:53:34,233 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:53:34,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c [2025-02-07 23:53:35,351 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/728c27741/0427b6968b6742e7a1b9ecdb59589c4b/FLAGcc1121cc4 [2025-02-07 23:53:35,770 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:53:35,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c [2025-02-07 23:53:35,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/728c27741/0427b6968b6742e7a1b9ecdb59589c4b/FLAGcc1121cc4 [2025-02-07 23:53:35,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/728c27741/0427b6968b6742e7a1b9ecdb59589c4b [2025-02-07 23:53:35,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:53:35,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:53:35,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:53:35,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:53:35,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:53:35,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:53:35" (1/1) ... [2025-02-07 23:53:35,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a54597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:35, skipping insertion in model container [2025-02-07 23:53:35,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:53:35" (1/1) ... [2025-02-07 23:53:36,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:53:36,176 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/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c[1173,1186] [2025-02-07 23:53:36,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:53:36,666 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:53:36,672 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/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c[1173,1186] [2025-02-07 23:53:37,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:53:37,088 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:53:37,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37 WrapperNode [2025-02-07 23:53:37,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:53:37,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:53:37,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:53:37,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:53:37,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:37,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:38,219 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14671 [2025-02-07 23:53:38,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:53:38,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:53:38,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:53:38,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:53:38,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:38,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:38,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:38,887 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:53:38,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:38,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:53:39,550 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:53:39,550 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:53:39,550 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:53:39,551 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (1/1) ... [2025-02-07 23:53:39,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:53:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:53:39,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:53:39,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:53:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:53:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:53:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:53:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:53:40,207 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:53:40,208 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:53:58,185 INFO L? ?]: Removed 8269 outVars from TransFormulas that were not future-live. [2025-02-07 23:53:58,185 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:53:58,537 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:53:58,539 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:53:58,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:53:58 BoogieIcfgContainer [2025-02-07 23:53:58,540 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:53:58,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:53:58,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:53:58,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:53:58,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:53:35" (1/3) ... [2025-02-07 23:53:58,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456fe345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:53:58, skipping insertion in model container [2025-02-07 23:53:58,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:53:37" (2/3) ... [2025-02-07 23:53:58,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456fe345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:53:58, skipping insertion in model container [2025-02-07 23:53:58,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:53:58" (3/3) ... [2025-02-07 23:53:58,547 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.2.prop1-func-interl.c [2025-02-07 23:53:58,558 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:53:58,560 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.rether.2.prop1-func-interl.c that has 1 procedures, 5208 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:53:58,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:53:58,673 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;@6d0c5441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:53:58,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:53:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 5208 states, 5206 states have (on average 1.500384172109105) internal successors, (7811), 5207 states have internal predecessors, (7811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:53:58,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2025-02-07 23:53:58,703 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:53:58,703 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:53:58,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:53:58,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:53:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash 909956757, now seen corresponding path program 1 times [2025-02-07 23:53:58,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:53:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532948570] [2025-02-07 23:53:58,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:53:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:53:58,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 216 statements into 1 equivalence classes. [2025-02-07 23:53:58,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 216 of 216 statements. [2025-02-07 23:53:58,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:53:58,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:53:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:53:59,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:53:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532948570] [2025-02-07 23:53:59,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532948570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:53:59,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:53:59,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:53:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262558277] [2025-02-07 23:53:59,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:53:59,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:53:59,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:53:59,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:53:59,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:53:59,679 INFO L87 Difference]: Start difference. First operand has 5208 states, 5206 states have (on average 1.500384172109105) internal successors, (7811), 5207 states have internal predecessors, (7811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:01,744 INFO L93 Difference]: Finished difference Result 10159 states and 15239 transitions. [2025-02-07 23:54:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:01,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2025-02-07 23:54:01,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:01,768 INFO L225 Difference]: With dead ends: 10159 [2025-02-07 23:54:01,769 INFO L226 Difference]: Without dead ends: 5208 [2025-02-07 23:54:01,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:01,778 INFO L435 NwaCegarLoop]: 6507 mSDtfsCounter, 0 mSDsluCounter, 13009 mSDsCounter, 0 mSdLazyCounter, 3907 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19516 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:01,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19516 Invalid, 3907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3907 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-07 23:54:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2025-02-07 23:54:01,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5208. [2025-02-07 23:54:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 1.499903975417707) internal successors, (7810), 5207 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7810 transitions. [2025-02-07 23:54:01,927 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 7810 transitions. Word has length 216 [2025-02-07 23:54:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:01,927 INFO L471 AbstractCegarLoop]: Abstraction has 5208 states and 7810 transitions. [2025-02-07 23:54:01,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 7810 transitions. [2025-02-07 23:54:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-07 23:54:01,933 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:01,934 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:01,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:54:01,934 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:01,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:01,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1851424103, now seen corresponding path program 1 times [2025-02-07 23:54:01,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:01,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550144635] [2025-02-07 23:54:01,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:01,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-07 23:54:02,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-07 23:54:02,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:02,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:02,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550144635] [2025-02-07 23:54:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550144635] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:02,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:02,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:54:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525386196] [2025-02-07 23:54:02,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:02,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:54:02,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:02,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:54:02,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:02,399 INFO L87 Difference]: Start difference. First operand 5208 states and 7810 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:04,256 INFO L93 Difference]: Finished difference Result 10161 states and 15238 transitions. [2025-02-07 23:54:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2025-02-07 23:54:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:04,271 INFO L225 Difference]: With dead ends: 10161 [2025-02-07 23:54:04,271 INFO L226 Difference]: Without dead ends: 5210 [2025-02-07 23:54:04,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:04,276 INFO L435 NwaCegarLoop]: 6507 mSDtfsCounter, 0 mSDsluCounter, 13006 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19513 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:04,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19513 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3910 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-07 23:54:04,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2025-02-07 23:54:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5210. [2025-02-07 23:54:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5210 states, 5209 states have (on average 1.499712036859282) internal successors, (7812), 5209 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 7812 transitions. [2025-02-07 23:54:04,334 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 7812 transitions. Word has length 217 [2025-02-07 23:54:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:04,335 INFO L471 AbstractCegarLoop]: Abstraction has 5210 states and 7812 transitions. [2025-02-07 23:54:04,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 7812 transitions. [2025-02-07 23:54:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-02-07 23:54:04,337 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:04,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:04,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:54:04,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:04,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash 371945232, now seen corresponding path program 1 times [2025-02-07 23:54:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:04,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745999917] [2025-02-07 23:54:04,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:04,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:04,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 218 statements into 1 equivalence classes. [2025-02-07 23:54:04,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 218 of 218 statements. [2025-02-07 23:54:04,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:04,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:04,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745999917] [2025-02-07 23:54:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745999917] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:04,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:04,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:54:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415155724] [2025-02-07 23:54:04,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:04,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:54:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:04,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:54:04,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:04,605 INFO L87 Difference]: Start difference. First operand 5210 states and 7812 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 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) [2025-02-07 23:54:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:06,370 INFO L93 Difference]: Finished difference Result 10165 states and 15242 transitions. [2025-02-07 23:54:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 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 218 [2025-02-07 23:54:06,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:06,383 INFO L225 Difference]: With dead ends: 10165 [2025-02-07 23:54:06,383 INFO L226 Difference]: Without dead ends: 5212 [2025-02-07 23:54:06,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:06,388 INFO L435 NwaCegarLoop]: 6507 mSDtfsCounter, 0 mSDsluCounter, 13001 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19508 SdHoareTripleChecker+Invalid, 3915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:06,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19508 Invalid, 3915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3915 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-07 23:54:06,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2025-02-07 23:54:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5212. [2025-02-07 23:54:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 1.4995202456342354) internal successors, (7814), 5211 states have internal predecessors, (7814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:06,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 7814 transitions. [2025-02-07 23:54:06,506 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 7814 transitions. Word has length 218 [2025-02-07 23:54:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:06,507 INFO L471 AbstractCegarLoop]: Abstraction has 5212 states and 7814 transitions. [2025-02-07 23:54:06,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 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) [2025-02-07 23:54:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 7814 transitions. [2025-02-07 23:54:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2025-02-07 23:54:06,509 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:06,509 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:06,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:54:06,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:06,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash 533771166, now seen corresponding path program 1 times [2025-02-07 23:54:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942011920] [2025-02-07 23:54:06,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:06,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 219 statements into 1 equivalence classes. [2025-02-07 23:54:06,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 219 of 219 statements. [2025-02-07 23:54:06,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:06,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:06,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:06,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942011920] [2025-02-07 23:54:06,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942011920] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:06,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:06,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:54:06,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940276656] [2025-02-07 23:54:06,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:06,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:54:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:06,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:54:06,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:54:06,976 INFO L87 Difference]: Start difference. First operand 5212 states and 7814 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 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) [2025-02-07 23:54:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:09,816 INFO L93 Difference]: Finished difference Result 14128 states and 21183 transitions. [2025-02-07 23:54:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:54:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 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 219 [2025-02-07 23:54:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:09,841 INFO L225 Difference]: With dead ends: 14128 [2025-02-07 23:54:09,841 INFO L226 Difference]: Without dead ends: 9173 [2025-02-07 23:54:09,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:54:09,855 INFO L435 NwaCegarLoop]: 6503 mSDtfsCounter, 6117 mSDsluCounter, 19183 mSDsCounter, 0 mSdLazyCounter, 5161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6117 SdHoareTripleChecker+Valid, 25686 SdHoareTripleChecker+Invalid, 5161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:09,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6117 Valid, 25686 Invalid, 5161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5161 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-07 23:54:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9173 states. [2025-02-07 23:54:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9173 to 5372. [2025-02-07 23:54:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5371 states have (on average 1.499534537330106) internal successors, (8054), 5371 states have internal predecessors, (8054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8054 transitions. [2025-02-07 23:54:09,922 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8054 transitions. Word has length 219 [2025-02-07 23:54:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:09,922 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8054 transitions. [2025-02-07 23:54:09,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 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) [2025-02-07 23:54:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8054 transitions. [2025-02-07 23:54:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2691 [2025-02-07 23:54:10,011 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:10,013 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-02-07 23:54:10,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:54:10,013 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash -170492957, now seen corresponding path program 1 times [2025-02-07 23:54:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851091159] [2025-02-07 23:54:10,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:10,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:10,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2690 statements into 1 equivalence classes. [2025-02-07 23:54:11,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2690 of 2690 statements. [2025-02-07 23:54:11,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:11,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:16,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:16,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851091159] [2025-02-07 23:54:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851091159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:16,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:16,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:54:16,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727387277] [2025-02-07 23:54:16,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:16,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:54:16,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:16,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:54:16,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:16,358 INFO L87 Difference]: Start difference. First operand 5372 states and 8054 transitions. Second operand has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:18,023 INFO L93 Difference]: Finished difference Result 10327 states and 15483 transitions. [2025-02-07 23:54:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:18,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 0 states have call successors, (0), 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 2690 [2025-02-07 23:54:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:18,036 INFO L225 Difference]: With dead ends: 10327 [2025-02-07 23:54:18,037 INFO L226 Difference]: Without dead ends: 5372 [2025-02-07 23:54:18,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:54:18,042 INFO L435 NwaCegarLoop]: 6501 mSDtfsCounter, 7437 mSDsluCounter, 6498 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7437 SdHoareTripleChecker+Valid, 12999 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:18,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7437 Valid, 12999 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2611 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-07 23:54:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2025-02-07 23:54:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5372. [2025-02-07 23:54:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5371 states have (on average 1.4993483522621485) internal successors, (8053), 5371 states have internal predecessors, (8053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8053 transitions. [2025-02-07 23:54:18,097 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8053 transitions. Word has length 2690 [2025-02-07 23:54:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:18,097 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8053 transitions. [2025-02-07 23:54:18,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8053 transitions. [2025-02-07 23:54:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2692 [2025-02-07 23:54:18,172 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:18,173 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1] [2025-02-07 23:54:18,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:54:18,174 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:18,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:18,176 INFO L85 PathProgramCache]: Analyzing trace with hash 835574298, now seen corresponding path program 1 times [2025-02-07 23:54:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:18,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156081745] [2025-02-07 23:54:18,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:18,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:18,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2691 statements into 1 equivalence classes. [2025-02-07 23:54:19,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2691 of 2691 statements. [2025-02-07 23:54:19,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:19,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:22,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:22,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156081745] [2025-02-07 23:54:22,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156081745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:22,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:22,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:54:22,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208503259] [2025-02-07 23:54:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:22,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:54:22,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:22,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:54:22,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:22,135 INFO L87 Difference]: Start difference. First operand 5372 states and 8053 transitions. Second operand has 4 states, 4 states have (on average 672.75) internal successors, (2691), 3 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:23,657 INFO L93 Difference]: Finished difference Result 10327 states and 15481 transitions. [2025-02-07 23:54:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:23,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 672.75) internal successors, (2691), 3 states have internal predecessors, (2691), 0 states have call successors, (0), 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 2691 [2025-02-07 23:54:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:23,665 INFO L225 Difference]: With dead ends: 10327 [2025-02-07 23:54:23,668 INFO L226 Difference]: Without dead ends: 5372 [2025-02-07 23:54:23,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:54:23,672 INFO L435 NwaCegarLoop]: 6500 mSDtfsCounter, 7427 mSDsluCounter, 6497 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7427 SdHoareTripleChecker+Valid, 12997 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:23,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7427 Valid, 12997 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2611 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-07 23:54:23,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2025-02-07 23:54:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5372. [2025-02-07 23:54:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5371 states have (on average 1.499162167194191) internal successors, (8052), 5371 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8052 transitions. [2025-02-07 23:54:23,731 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8052 transitions. Word has length 2691 [2025-02-07 23:54:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:23,732 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8052 transitions. [2025-02-07 23:54:23,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 672.75) internal successors, (2691), 3 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8052 transitions. [2025-02-07 23:54:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2693 [2025-02-07 23:54:23,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:23,799 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:23,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:54:23,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:23,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1809497427, now seen corresponding path program 1 times [2025-02-07 23:54:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:23,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806579091] [2025-02-07 23:54:23,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:24,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2692 statements into 1 equivalence classes. [2025-02-07 23:54:24,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2692 of 2692 statements. [2025-02-07 23:54:24,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:24,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:28,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:28,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806579091] [2025-02-07 23:54:28,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806579091] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:28,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:28,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:54:28,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71326360] [2025-02-07 23:54:28,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:28,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:54:28,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:28,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:54:28,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:54:28,013 INFO L87 Difference]: Start difference. First operand 5372 states and 8052 transitions. Second operand has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:29,408 INFO L93 Difference]: Finished difference Result 10328 states and 15481 transitions. [2025-02-07 23:54:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:54:29,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 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 2692 [2025-02-07 23:54:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:29,414 INFO L225 Difference]: With dead ends: 10328 [2025-02-07 23:54:29,414 INFO L226 Difference]: Without dead ends: 5373 [2025-02-07 23:54:29,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:54:29,417 INFO L435 NwaCegarLoop]: 6506 mSDtfsCounter, 0 mSDsluCounter, 6501 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13007 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:29,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13007 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-07 23:54:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2025-02-07 23:54:29,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373. [2025-02-07 23:54:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5372 states have (on average 1.4990692479523455) internal successors, (8053), 5372 states have internal predecessors, (8053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8053 transitions. [2025-02-07 23:54:29,452 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 8053 transitions. Word has length 2692 [2025-02-07 23:54:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:29,453 INFO L471 AbstractCegarLoop]: Abstraction has 5373 states and 8053 transitions. [2025-02-07 23:54:29,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 8053 transitions. [2025-02-07 23:54:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2693 [2025-02-07 23:54:29,485 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:29,486 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:29,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-07 23:54:29,487 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:29,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:29,489 INFO L85 PathProgramCache]: Analyzing trace with hash 650354638, now seen corresponding path program 1 times [2025-02-07 23:54:29,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:29,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793465298] [2025-02-07 23:54:29,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:29,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2692 statements into 1 equivalence classes. [2025-02-07 23:54:30,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2692 of 2692 statements. [2025-02-07 23:54:30,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:30,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:33,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793465298] [2025-02-07 23:54:33,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793465298] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:33,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:33,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:54:33,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289617543] [2025-02-07 23:54:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:33,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:54:33,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:33,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:54:33,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:54:33,576 INFO L87 Difference]: Start difference. First operand 5373 states and 8053 transitions. Second operand has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:34,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:34,750 INFO L93 Difference]: Finished difference Result 10330 states and 15483 transitions. [2025-02-07 23:54:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:54:34,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 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 2692 [2025-02-07 23:54:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:34,759 INFO L225 Difference]: With dead ends: 10330 [2025-02-07 23:54:34,760 INFO L226 Difference]: Without dead ends: 5374 [2025-02-07 23:54:34,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:54:34,764 INFO L435 NwaCegarLoop]: 6506 mSDtfsCounter, 0 mSDsluCounter, 6501 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13007 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:34,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13007 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-07 23:54:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2025-02-07 23:54:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5374. [2025-02-07 23:54:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5374 states, 5373 states have (on average 1.4989763632979713) internal successors, (8054), 5373 states have internal predecessors, (8054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 8054 transitions. [2025-02-07 23:54:34,802 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 8054 transitions. Word has length 2692 [2025-02-07 23:54:34,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:34,803 INFO L471 AbstractCegarLoop]: Abstraction has 5374 states and 8054 transitions. [2025-02-07 23:54:34,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 8054 transitions. [2025-02-07 23:54:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2693 [2025-02-07 23:54:34,833 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:34,834 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:34,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-07 23:54:34,834 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:34,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash 154522125, now seen corresponding path program 1 times [2025-02-07 23:54:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794221] [2025-02-07 23:54:34,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:34,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:35,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2692 statements into 1 equivalence classes. [2025-02-07 23:54:35,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2692 of 2692 statements. [2025-02-07 23:54:35,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:35,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:40,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794221] [2025-02-07 23:54:40,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794221] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:40,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:40,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:54:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222201069] [2025-02-07 23:54:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:40,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 23:54:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:40,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 23:54:40,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:54:40,229 INFO L87 Difference]: Start difference. First operand 5374 states and 8054 transitions. Second operand has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:42,900 INFO L93 Difference]: Finished difference Result 10335 states and 15489 transitions. [2025-02-07 23:54:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:54:42,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 0 states have call successors, (0), 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 2692 [2025-02-07 23:54:42,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:42,911 INFO L225 Difference]: With dead ends: 10335 [2025-02-07 23:54:42,911 INFO L226 Difference]: Without dead ends: 5378 [2025-02-07 23:54:42,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:54:42,972 INFO L435 NwaCegarLoop]: 6375 mSDtfsCounter, 7434 mSDsluCounter, 19114 mSDsCounter, 0 mSdLazyCounter, 5731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7434 SdHoareTripleChecker+Valid, 25489 SdHoareTripleChecker+Invalid, 5731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:42,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7434 Valid, 25489 Invalid, 5731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5731 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-07 23:54:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2025-02-07 23:54:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5376. [2025-02-07 23:54:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 5375 states have (on average 1.4987906976744185) internal successors, (8056), 5375 states have internal predecessors, (8056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 8056 transitions. [2025-02-07 23:54:43,006 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 8056 transitions. Word has length 2692 [2025-02-07 23:54:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:43,007 INFO L471 AbstractCegarLoop]: Abstraction has 5376 states and 8056 transitions. [2025-02-07 23:54:43,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 8056 transitions. [2025-02-07 23:54:43,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2694 [2025-02-07 23:54:43,037 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:43,038 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:54:43,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-07 23:54:43,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:43,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:43,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2017794955, now seen corresponding path program 1 times [2025-02-07 23:54:43,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:43,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035209662] [2025-02-07 23:54:43,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:43,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:43,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2693 statements into 1 equivalence classes. [2025-02-07 23:54:44,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2693 of 2693 statements. [2025-02-07 23:54:44,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:44,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:54:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:54:47,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:54:47,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035209662] [2025-02-07 23:54:47,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035209662] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:54:47,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:54:47,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:54:47,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776758036] [2025-02-07 23:54:47,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:54:47,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:54:47,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:54:47,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:54:47,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:54:47,701 INFO L87 Difference]: Start difference. First operand 5376 states and 8056 transitions. Second operand has 4 states, 4 states have (on average 673.25) internal successors, (2693), 3 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:54:49,338 INFO L93 Difference]: Finished difference Result 10333 states and 15485 transitions. [2025-02-07 23:54:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:54:49,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 673.25) internal successors, (2693), 3 states have internal predecessors, (2693), 0 states have call successors, (0), 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 2693 [2025-02-07 23:54:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:54:49,345 INFO L225 Difference]: With dead ends: 10333 [2025-02-07 23:54:49,345 INFO L226 Difference]: Without dead ends: 5374 [2025-02-07 23:54:49,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:54:49,348 INFO L435 NwaCegarLoop]: 6472 mSDtfsCounter, 7415 mSDsluCounter, 6468 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7415 SdHoareTripleChecker+Valid, 12940 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:54:49,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7415 Valid, 12940 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-07 23:54:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2025-02-07 23:54:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5374. [2025-02-07 23:54:49,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5374 states, 5373 states have (on average 1.4982319002419504) internal successors, (8050), 5373 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 8050 transitions. [2025-02-07 23:54:49,385 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 8050 transitions. Word has length 2693 [2025-02-07 23:54:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:54:49,386 INFO L471 AbstractCegarLoop]: Abstraction has 5374 states and 8050 transitions. [2025-02-07 23:54:49,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 673.25) internal successors, (2693), 3 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:54:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 8050 transitions. [2025-02-07 23:54:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2695 [2025-02-07 23:54:49,415 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:54:49,416 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1] [2025-02-07 23:54:49,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-07 23:54:49,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:54:49,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:54:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1653282137, now seen corresponding path program 1 times [2025-02-07 23:54:49,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:54:49,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308263963] [2025-02-07 23:54:49,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:54:49,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:54:49,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2694 statements into 1 equivalence classes. [2025-02-07 23:54:50,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2694 of 2694 statements. [2025-02-07 23:54:50,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:54:50,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat