./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbe45afa86e2c578c058b9245371f9cd8d3f7cde9f82c7f7a0cfc33405a8ed29 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 03:07:32,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 03:07:32,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 03:07:32,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 03:07:32,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 03:07:32,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 03:07:32,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 03:07:32,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 03:07:32,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 03:07:32,419 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 03:07:32,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 03:07:32,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 03:07:32,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 03:07:32,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 03:07:32,421 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 03:07:32,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 03:07:32,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 03:07:32,421 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 03:07:32,422 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 03:07:32,423 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:07:32,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 03:07:32,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 03:07:32,424 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbe45afa86e2c578c058b9245371f9cd8d3f7cde9f82c7f7a0cfc33405a8ed29 [2025-03-17 03:07:32,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 03:07:32,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 03:07:32,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 03:07:32,698 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 03:07:32,698 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 03:07:32,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i [2025-03-17 03:07:34,012 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb43f8c8/95880f366be94b77a39c5383cca15f2a/FLAG531512493 [2025-03-17 03:07:34,262 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 03:07:34,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i [2025-03-17 03:07:34,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb43f8c8/95880f366be94b77a39c5383cca15f2a/FLAG531512493 [2025-03-17 03:07:34,286 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb43f8c8/95880f366be94b77a39c5383cca15f2a [2025-03-17 03:07:34,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 03:07:34,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 03:07:34,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 03:07:34,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 03:07:34,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 03:07:34,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126c0674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34, skipping insertion in model container [2025-03-17 03:07:34,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 03:07:34,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i[916,929] [2025-03-17 03:07:34,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:07:34,524 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 03:07:34,535 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-61.i[916,929] [2025-03-17 03:07:34,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:07:34,603 INFO L204 MainTranslator]: Completed translation [2025-03-17 03:07:34,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34 WrapperNode [2025-03-17 03:07:34,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 03:07:34,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 03:07:34,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 03:07:34,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 03:07:34,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,653 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246 [2025-03-17 03:07:34,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 03:07:34,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 03:07:34,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 03:07:34,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 03:07:34,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,689 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 03:07:34,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,702 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 03:07:34,723 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 03:07:34,723 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 03:07:34,723 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 03:07:34,724 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (1/1) ... [2025-03-17 03:07:34,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:07:34,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:07:34,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 03:07:34,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 03:07:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 03:07:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 03:07:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 03:07:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 03:07:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 03:07:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 03:07:34,824 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 03:07:34,826 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 03:07:35,218 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L197: havoc property_#t~bitwise20#1;havoc property_#t~short21#1;havoc property_#t~ite23#1;havoc property_#t~bitwise22#1;havoc property_#t~short24#1; [2025-03-17 03:07:35,268 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2025-03-17 03:07:35,269 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 03:07:35,286 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 03:07:35,286 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 03:07:35,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:07:35 BoogieIcfgContainer [2025-03-17 03:07:35,287 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 03:07:35,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 03:07:35,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 03:07:35,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 03:07:35,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:07:34" (1/3) ... [2025-03-17 03:07:35,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f5d414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:07:35, skipping insertion in model container [2025-03-17 03:07:35,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:07:34" (2/3) ... [2025-03-17 03:07:35,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f5d414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:07:35, skipping insertion in model container [2025-03-17 03:07:35,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:07:35" (3/3) ... [2025-03-17 03:07:35,295 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-61.i [2025-03-17 03:07:35,306 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 03:07:35,309 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-1loop_file-61.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 03:07:35,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 03:07:35,369 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;@35bd63fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 03:07:35,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 03:07:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 03:07:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-17 03:07:35,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:35,391 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:35,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:35,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -148536731, now seen corresponding path program 1 times [2025-03-17 03:07:35,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:35,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614906893] [2025-03-17 03:07:35,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:35,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:35,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-17 03:07:35,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-17 03:07:35,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:35,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2025-03-17 03:07:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614906893] [2025-03-17 03:07:35,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614906893] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 03:07:35,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9768645] [2025-03-17 03:07:35,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:35,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 03:07:35,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:07:35,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 03:07:35,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 03:07:35,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-17 03:07:35,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-17 03:07:35,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:35,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:35,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 03:07:35,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 03:07:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2025-03-17 03:07:35,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 03:07:35,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9768645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:35,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 03:07:35,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 03:07:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961905714] [2025-03-17 03:07:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:35,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 03:07:35,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:35,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 03:07:35,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 03:07:35,926 INFO L87 Difference]: Start difference. First operand has 101 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-17 03:07:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:35,962 INFO L93 Difference]: Finished difference Result 201 states and 345 transitions. [2025-03-17 03:07:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 03:07:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2025-03-17 03:07:35,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:35,971 INFO L225 Difference]: With dead ends: 201 [2025-03-17 03:07:35,972 INFO L226 Difference]: Without dead ends: 99 [2025-03-17 03:07:35,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 03:07:35,979 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:35,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 03:07:35,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-17 03:07:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2025-03-17 03:07:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 71 states have internal predecessors, (104), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 03:07:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2025-03-17 03:07:36,020 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 172 [2025-03-17 03:07:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:36,021 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2025-03-17 03:07:36,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-17 03:07:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2025-03-17 03:07:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-17 03:07:36,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:36,025 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:36,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 03:07:36,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 03:07:36,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:36,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash 624939969, now seen corresponding path program 1 times [2025-03-17 03:07:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042304592] [2025-03-17 03:07:36,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:36,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:36,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-17 03:07:36,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-17 03:07:36,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:36,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:40,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:40,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042304592] [2025-03-17 03:07:40,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042304592] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:40,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:40,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 03:07:40,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705059760] [2025-03-17 03:07:40,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:40,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 03:07:40,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:40,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 03:07:40,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 03:07:40,134 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-17 03:07:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:42,682 INFO L93 Difference]: Finished difference Result 450 states and 703 transitions. [2025-03-17 03:07:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 03:07:42,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2025-03-17 03:07:42,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:42,686 INFO L225 Difference]: With dead ends: 450 [2025-03-17 03:07:42,687 INFO L226 Difference]: Without dead ends: 352 [2025-03-17 03:07:42,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-17 03:07:42,689 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 690 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:42,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 787 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-17 03:07:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-03-17 03:07:42,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 165. [2025-03-17 03:07:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 263 transitions. [2025-03-17 03:07:42,732 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 263 transitions. Word has length 172 [2025-03-17 03:07:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:42,732 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 263 transitions. [2025-03-17 03:07:42,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-17 03:07:42,733 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 263 transitions. [2025-03-17 03:07:42,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-17 03:07:42,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:42,737 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:42,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 03:07:42,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:42,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:42,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1399996690, now seen corresponding path program 1 times [2025-03-17 03:07:42,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:42,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098386048] [2025-03-17 03:07:42,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:42,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:42,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-17 03:07:42,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 03:07:42,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:42,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:44,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:44,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098386048] [2025-03-17 03:07:44,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098386048] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:44,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:44,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 03:07:44,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313440230] [2025-03-17 03:07:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:44,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 03:07:44,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:44,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 03:07:44,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 03:07:44,085 INFO L87 Difference]: Start difference. First operand 165 states and 263 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:44,315 INFO L93 Difference]: Finished difference Result 291 states and 458 transitions. [2025-03-17 03:07:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 03:07:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2025-03-17 03:07:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:44,320 INFO L225 Difference]: With dead ends: 291 [2025-03-17 03:07:44,320 INFO L226 Difference]: Without dead ends: 193 [2025-03-17 03:07:44,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:07:44,321 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 93 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:44,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 425 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 03:07:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-03-17 03:07:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 174. [2025-03-17 03:07:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 119 states have (on average 1.453781512605042) internal successors, (173), 119 states have internal predecessors, (173), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 277 transitions. [2025-03-17 03:07:44,339 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 277 transitions. Word has length 173 [2025-03-17 03:07:44,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:44,340 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 277 transitions. [2025-03-17 03:07:44,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:44,340 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 277 transitions. [2025-03-17 03:07:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-17 03:07:44,344 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:44,344 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:44,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 03:07:44,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:44,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash 829170827, now seen corresponding path program 1 times [2025-03-17 03:07:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:44,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577825890] [2025-03-17 03:07:44,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:44,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-17 03:07:44,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 03:07:44,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:44,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:45,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577825890] [2025-03-17 03:07:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577825890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:45,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:45,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-17 03:07:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772660400] [2025-03-17 03:07:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:45,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 03:07:45,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:45,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 03:07:45,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-17 03:07:45,127 INFO L87 Difference]: Start difference. First operand 174 states and 277 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:45,956 INFO L93 Difference]: Finished difference Result 489 states and 767 transitions. [2025-03-17 03:07:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 03:07:45,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2025-03-17 03:07:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:45,962 INFO L225 Difference]: With dead ends: 489 [2025-03-17 03:07:45,962 INFO L226 Difference]: Without dead ends: 382 [2025-03-17 03:07:45,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2025-03-17 03:07:45,965 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 769 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:45,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 796 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 03:07:45,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-03-17 03:07:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 233. [2025-03-17 03:07:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 178 states have (on average 1.5337078651685394) internal successors, (273), 178 states have internal predecessors, (273), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 377 transitions. [2025-03-17 03:07:46,001 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 377 transitions. Word has length 173 [2025-03-17 03:07:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:46,001 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 377 transitions. [2025-03-17 03:07:46,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 377 transitions. [2025-03-17 03:07:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-17 03:07:46,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:46,004 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:46,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 03:07:46,004 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:46,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:46,005 INFO L85 PathProgramCache]: Analyzing trace with hash 535767820, now seen corresponding path program 1 times [2025-03-17 03:07:46,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:46,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925860651] [2025-03-17 03:07:46,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:46,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:46,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-17 03:07:46,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 03:07:46,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:46,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:47,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:47,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925860651] [2025-03-17 03:07:47,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925860651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:47,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:47,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 03:07:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828815191] [2025-03-17 03:07:47,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:47,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 03:07:47,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:47,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 03:07:47,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:07:47,210 INFO L87 Difference]: Start difference. First operand 233 states and 377 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:47,553 INFO L93 Difference]: Finished difference Result 360 states and 572 transitions. [2025-03-17 03:07:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 03:07:47,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2025-03-17 03:07:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:47,555 INFO L225 Difference]: With dead ends: 360 [2025-03-17 03:07:47,555 INFO L226 Difference]: Without dead ends: 253 [2025-03-17 03:07:47,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2025-03-17 03:07:47,556 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 127 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:47,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 389 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 03:07:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-17 03:07:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 215. [2025-03-17 03:07:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 160 states have (on average 1.51875) internal successors, (243), 160 states have internal predecessors, (243), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 347 transitions. [2025-03-17 03:07:47,579 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 347 transitions. Word has length 173 [2025-03-17 03:07:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:47,580 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 347 transitions. [2025-03-17 03:07:47,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 347 transitions. [2025-03-17 03:07:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-17 03:07:47,583 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:47,583 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:47,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 03:07:47,583 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:47,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash -4507568, now seen corresponding path program 1 times [2025-03-17 03:07:47,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:47,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863988890] [2025-03-17 03:07:47,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:47,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:47,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-17 03:07:47,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-17 03:07:47,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:47,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:47,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863988890] [2025-03-17 03:07:47,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863988890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:47,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:47,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 03:07:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968996035] [2025-03-17 03:07:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:47,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 03:07:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:47,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 03:07:47,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 03:07:47,672 INFO L87 Difference]: Start difference. First operand 215 states and 347 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:47,727 INFO L93 Difference]: Finished difference Result 358 states and 571 transitions. [2025-03-17 03:07:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 03:07:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 175 [2025-03-17 03:07:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:47,729 INFO L225 Difference]: With dead ends: 358 [2025-03-17 03:07:47,729 INFO L226 Difference]: Without dead ends: 260 [2025-03-17 03:07:47,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 03:07:47,730 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 53 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:47,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 320 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 03:07:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-03-17 03:07:47,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 243. [2025-03-17 03:07:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 188 states have (on average 1.5425531914893618) internal successors, (290), 188 states have internal predecessors, (290), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 394 transitions. [2025-03-17 03:07:47,741 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 394 transitions. Word has length 175 [2025-03-17 03:07:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:47,742 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 394 transitions. [2025-03-17 03:07:47,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 394 transitions. [2025-03-17 03:07:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-17 03:07:47,743 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:47,743 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:47,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 03:07:47,743 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:47,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1599763510, now seen corresponding path program 1 times [2025-03-17 03:07:47,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:47,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046443138] [2025-03-17 03:07:47,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:47,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:47,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-17 03:07:47,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-17 03:07:47,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:47,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2025-03-17 03:07:47,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046443138] [2025-03-17 03:07:47,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046443138] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:07:47,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:07:47,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 03:07:47,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858113116] [2025-03-17 03:07:47,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:07:47,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 03:07:47,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:47,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 03:07:47,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:07:47,974 INFO L87 Difference]: Start difference. First operand 243 states and 394 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:48,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:48,105 INFO L93 Difference]: Finished difference Result 398 states and 642 transitions. [2025-03-17 03:07:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 03:07:48,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 175 [2025-03-17 03:07:48,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:48,107 INFO L225 Difference]: With dead ends: 398 [2025-03-17 03:07:48,107 INFO L226 Difference]: Without dead ends: 237 [2025-03-17 03:07:48,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:07:48,108 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 76 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:48,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 375 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 03:07:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2025-03-17 03:07:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2025-03-17 03:07:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 177 states have (on average 1.4802259887005649) internal successors, (262), 177 states have internal predecessors, (262), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 366 transitions. [2025-03-17 03:07:48,127 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 366 transitions. Word has length 175 [2025-03-17 03:07:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:48,127 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 366 transitions. [2025-03-17 03:07:48,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-17 03:07:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 366 transitions. [2025-03-17 03:07:48,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-17 03:07:48,129 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:48,129 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:48,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 03:07:48,130 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:48,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:48,131 INFO L85 PathProgramCache]: Analyzing trace with hash -343178113, now seen corresponding path program 1 times [2025-03-17 03:07:48,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:48,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745811922] [2025-03-17 03:07:48,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:48,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:48,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-17 03:07:48,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-17 03:07:48,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:48,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:48,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2025-03-17 03:07:48,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:48,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745811922] [2025-03-17 03:07:48,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745811922] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 03:07:48,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967248320] [2025-03-17 03:07:48,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:48,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 03:07:48,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:07:48,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 03:07:48,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 03:07:48,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-17 03:07:48,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-17 03:07:48,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:48,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:48,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 03:07:48,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 03:07:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2025-03-17 03:07:48,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 03:07:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2025-03-17 03:07:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967248320] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 03:07:49,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 03:07:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2025-03-17 03:07:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739302067] [2025-03-17 03:07:49,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 03:07:49,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 03:07:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:49,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 03:07:49,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-17 03:07:49,078 INFO L87 Difference]: Start difference. First operand 233 states and 366 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 3 states have call predecessors, (78), 5 states have call successors, (78) [2025-03-17 03:07:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:49,632 INFO L93 Difference]: Finished difference Result 419 states and 638 transitions. [2025-03-17 03:07:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 03:07:49,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 3 states have call predecessors, (78), 5 states have call successors, (78) Word has length 177 [2025-03-17 03:07:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:49,634 INFO L225 Difference]: With dead ends: 419 [2025-03-17 03:07:49,634 INFO L226 Difference]: Without dead ends: 240 [2025-03-17 03:07:49,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2025-03-17 03:07:49,635 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 308 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:49,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 447 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 03:07:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2025-03-17 03:07:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 188. [2025-03-17 03:07:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 130 states have (on average 1.3692307692307693) internal successors, (178), 130 states have internal predecessors, (178), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 282 transitions. [2025-03-17 03:07:49,653 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 282 transitions. Word has length 177 [2025-03-17 03:07:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:49,653 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 282 transitions. [2025-03-17 03:07:49,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 3 states have call predecessors, (78), 5 states have call successors, (78) [2025-03-17 03:07:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 282 transitions. [2025-03-17 03:07:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-17 03:07:49,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:49,656 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:49,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 03:07:49,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-17 03:07:49,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:49,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2005086637, now seen corresponding path program 1 times [2025-03-17 03:07:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432734434] [2025-03-17 03:07:49,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:49,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:49,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-17 03:07:49,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-17 03:07:49,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:49,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2025-03-17 03:07:50,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:07:50,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432734434] [2025-03-17 03:07:50,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432734434] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 03:07:50,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322262532] [2025-03-17 03:07:50,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:50,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 03:07:50,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:07:50,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 03:07:50,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 03:07:50,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-17 03:07:50,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-17 03:07:50,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:50,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:07:50,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 03:07:50,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 03:07:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 435 proven. 60 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2025-03-17 03:07:51,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 03:07:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2025-03-17 03:07:51,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322262532] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 03:07:51,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 03:07:51,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-17 03:07:51,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028544709] [2025-03-17 03:07:51,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 03:07:51,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 03:07:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:07:51,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 03:07:51,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-03-17 03:07:51,733 INFO L87 Difference]: Start difference. First operand 188 states and 282 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-03-17 03:07:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:07:52,280 INFO L93 Difference]: Finished difference Result 386 states and 561 transitions. [2025-03-17 03:07:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 03:07:52,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 178 [2025-03-17 03:07:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:07:52,282 INFO L225 Difference]: With dead ends: 386 [2025-03-17 03:07:52,282 INFO L226 Difference]: Without dead ends: 243 [2025-03-17 03:07:52,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 350 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2025-03-17 03:07:52,284 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 102 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 03:07:52,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 578 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 03:07:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2025-03-17 03:07:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 206. [2025-03-17 03:07:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 146 states have (on average 1.3150684931506849) internal successors, (192), 146 states have internal predecessors, (192), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 03:07:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 296 transitions. [2025-03-17 03:07:52,311 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 296 transitions. Word has length 178 [2025-03-17 03:07:52,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:07:52,312 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 296 transitions. [2025-03-17 03:07:52,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-03-17 03:07:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 296 transitions. [2025-03-17 03:07:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-17 03:07:52,316 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:07:52,317 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:07:52,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 03:07:52,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 03:07:52,519 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:07:52,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:07:52,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1669398939, now seen corresponding path program 1 times [2025-03-17 03:07:52,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:07:52,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371184331] [2025-03-17 03:07:52,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:07:52,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:07:52,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-17 03:07:52,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-17 03:07:52,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:07:52,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat