./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.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 c0271c86359ca1321e131492680f0610c424530e37b1dccfbb85027d39387777 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:25:13,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:25:13,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:25:13,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:25:13,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:25:13,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:25:13,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:25:13,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:25:13,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:25:13,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:25:13,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:25:13,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:25:13,576 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:25:13,577 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:25:13,577 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:25:13,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:25:13,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:25:13,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:25:13,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:25:13,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:25:13,579 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 -> c0271c86359ca1321e131492680f0610c424530e37b1dccfbb85027d39387777 [2025-03-08 15:25:13,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:25:13,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:25:13,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:25:13,790 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:25:13,790 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:25:13,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2025-03-08 15:25:14,903 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa66c92c9/9d1f697e63094d18b6f5354cd7e6109a/FLAGbc6242c27 [2025-03-08 15:25:15,190 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:25:15,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2025-03-08 15:25:15,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa66c92c9/9d1f697e63094d18b6f5354cd7e6109a/FLAGbc6242c27 [2025-03-08 15:25:15,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa66c92c9/9d1f697e63094d18b6f5354cd7e6109a [2025-03-08 15:25:15,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:25:15,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:25:15,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:25:15,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:25:15,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:25:15,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aacb7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15, skipping insertion in model container [2025-03-08 15:25:15,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:25:15,357 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_operatoramount_amount250_file-66.i[916,929] [2025-03-08 15:25:15,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:25:15,460 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:25:15,468 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_operatoramount_amount250_file-66.i[916,929] [2025-03-08 15:25:15,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:25:15,538 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:25:15,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15 WrapperNode [2025-03-08 15:25:15,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:25:15,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:25:15,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:25:15,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:25:15,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,602 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 448 [2025-03-08 15:25:15,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:25:15,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:25:15,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:25:15,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:25:15,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,643 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:25:15,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:25:15,682 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:25:15,682 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:25:15,682 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:25:15,682 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (1/1) ... [2025-03-08 15:25:15,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:25:15,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:15,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:25:15,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:25:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:25:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:25:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:25:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:25:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:25:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:25:15,808 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:25:15,809 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:25:16,403 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L348: havoc property_#t~ite38#1;havoc property_#t~ite37#1;havoc property_#t~bitwise34#1;havoc property_#t~ite36#1;havoc property_#t~bitwise35#1;havoc property_#t~short39#1;havoc property_#t~bitwise40#1;havoc property_#t~short41#1;havoc property_#t~ite45#1;havoc property_#t~ite44#1;havoc property_#t~ite43#1;havoc property_#t~bitwise42#1;havoc property_#t~short46#1; [2025-03-08 15:25:16,467 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2025-03-08 15:25:16,467 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:25:16,488 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:25:16,488 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:25:16,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:25:16 BoogieIcfgContainer [2025-03-08 15:25:16,488 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:25:16,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:25:16,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:25:16,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:25:16,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:25:15" (1/3) ... [2025-03-08 15:25:16,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503975af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:25:16, skipping insertion in model container [2025-03-08 15:25:16,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:25:15" (2/3) ... [2025-03-08 15:25:16,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503975af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:25:16, skipping insertion in model container [2025-03-08 15:25:16,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:25:16" (3/3) ... [2025-03-08 15:25:16,497 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-66.i [2025-03-08 15:25:16,506 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:25:16,509 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-66.i that has 2 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:25:16,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:25:16,560 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;@5356b2c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:25:16,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:25:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 140 states have (on average 1.5071428571428571) internal successors, (211), 141 states have internal predecessors, (211), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-03-08 15:25:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-08 15:25:16,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:16,581 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:16,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:16,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1366721238, now seen corresponding path program 1 times [2025-03-08 15:25:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576352902] [2025-03-08 15:25:16,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:16,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:16,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-03-08 15:25:16,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-03-08 15:25:16,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:16,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2025-03-08 15:25:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:17,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576352902] [2025-03-08 15:25:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576352902] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:25:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142147291] [2025-03-08 15:25:17,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:17,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:17,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:17,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:25:17,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 15:25:17,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-03-08 15:25:17,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-03-08 15:25:17,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:17,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:17,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:25:17,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:25:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2025-03-08 15:25:17,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:25:17,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142147291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:25:17,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:25:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:25:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362601927] [2025-03-08 15:25:17,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:25:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:25:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:17,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:25:17,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:25:17,341 INFO L87 Difference]: Start difference. First operand has 186 states, 140 states have (on average 1.5071428571428571) internal successors, (211), 141 states have internal predecessors, (211), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2025-03-08 15:25:17,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:17,387 INFO L93 Difference]: Finished difference Result 366 states and 632 transitions. [2025-03-08 15:25:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:25:17,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 295 [2025-03-08 15:25:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:17,398 INFO L225 Difference]: With dead ends: 366 [2025-03-08 15:25:17,398 INFO L226 Difference]: Without dead ends: 183 [2025-03-08 15:25:17,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:25:17,405 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:17,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:25:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-03-08 15:25:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2025-03-08 15:25:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 138 states have (on average 1.4782608695652173) internal successors, (204), 138 states have internal predecessors, (204), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-03-08 15:25:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 290 transitions. [2025-03-08 15:25:17,455 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 290 transitions. Word has length 295 [2025-03-08 15:25:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:17,457 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 290 transitions. [2025-03-08 15:25:17,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2025-03-08 15:25:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 290 transitions. [2025-03-08 15:25:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-08 15:25:17,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:17,464 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:17,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 15:25:17,665 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 [2025-03-08 15:25:17,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:17,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 972589043, now seen corresponding path program 1 times [2025-03-08 15:25:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:17,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193701828] [2025-03-08 15:25:17,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:17,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-03-08 15:25:17,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-03-08 15:25:17,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:17,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-03-08 15:25:18,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:18,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193701828] [2025-03-08 15:25:18,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193701828] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:25:18,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:25:18,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 15:25:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408623020] [2025-03-08 15:25:18,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:25:18,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 15:25:18,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:18,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 15:25:18,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 15:25:18,010 INFO L87 Difference]: Start difference. First operand 183 states and 290 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:18,151 INFO L93 Difference]: Finished difference Result 529 states and 842 transitions. [2025-03-08 15:25:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 15:25:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 295 [2025-03-08 15:25:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:18,157 INFO L225 Difference]: With dead ends: 529 [2025-03-08 15:25:18,158 INFO L226 Difference]: Without dead ends: 349 [2025-03-08 15:25:18,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 15:25:18,161 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 252 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:18,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 637 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:25:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2025-03-08 15:25:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 217. [2025-03-08 15:25:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.494186046511628) internal successors, (257), 172 states have internal predecessors, (257), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-03-08 15:25:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 343 transitions. [2025-03-08 15:25:18,194 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 343 transitions. Word has length 295 [2025-03-08 15:25:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:18,196 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 343 transitions. [2025-03-08 15:25:18,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 343 transitions. [2025-03-08 15:25:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-08 15:25:18,200 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:18,200 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:18,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:25:18,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:18,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1003608850, now seen corresponding path program 1 times [2025-03-08 15:25:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:18,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753018867] [2025-03-08 15:25:18,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:18,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-03-08 15:25:18,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-03-08 15:25:18,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:18,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-03-08 15:25:19,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:19,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753018867] [2025-03-08 15:25:19,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753018867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:25:19,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:25:19,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 15:25:19,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143823654] [2025-03-08 15:25:19,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:25:19,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 15:25:19,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:19,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 15:25:19,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:25:19,226 INFO L87 Difference]: Start difference. First operand 217 states and 343 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:19,520 INFO L93 Difference]: Finished difference Result 692 states and 1102 transitions. [2025-03-08 15:25:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 15:25:19,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 295 [2025-03-08 15:25:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:19,523 INFO L225 Difference]: With dead ends: 692 [2025-03-08 15:25:19,523 INFO L226 Difference]: Without dead ends: 478 [2025-03-08 15:25:19,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:25:19,524 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 263 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:19,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 865 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:25:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2025-03-08 15:25:19,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 293. [2025-03-08 15:25:19,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 204 states have (on average 1.4166666666666667) internal successors, (289), 204 states have internal predecessors, (289), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-03-08 15:25:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 461 transitions. [2025-03-08 15:25:19,565 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 461 transitions. Word has length 295 [2025-03-08 15:25:19,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:19,566 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 461 transitions. [2025-03-08 15:25:19,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:19,566 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 461 transitions. [2025-03-08 15:25:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2025-03-08 15:25:19,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:19,570 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:19,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 15:25:19,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:19,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash -100839935, now seen corresponding path program 1 times [2025-03-08 15:25:19,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:19,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512561520] [2025-03-08 15:25:19,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:19,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:19,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-03-08 15:25:19,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-03-08 15:25:19,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:19,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-03-08 15:25:20,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:20,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512561520] [2025-03-08 15:25:20,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512561520] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:25:20,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:25:20,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 15:25:20,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089588457] [2025-03-08 15:25:20,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:25:20,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 15:25:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:20,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 15:25:20,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:25:20,074 INFO L87 Difference]: Start difference. First operand 293 states and 461 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:20,360 INFO L93 Difference]: Finished difference Result 631 states and 985 transitions. [2025-03-08 15:25:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 15:25:20,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 296 [2025-03-08 15:25:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:20,366 INFO L225 Difference]: With dead ends: 631 [2025-03-08 15:25:20,367 INFO L226 Difference]: Without dead ends: 417 [2025-03-08 15:25:20,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:25:20,368 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 475 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:20,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 540 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:25:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2025-03-08 15:25:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 301. [2025-03-08 15:25:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 210 states have (on average 1.4) internal successors, (294), 210 states have internal predecessors, (294), 86 states have call successors, (86), 4 states have call predecessors, (86), 4 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-03-08 15:25:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 466 transitions. [2025-03-08 15:25:20,422 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 466 transitions. Word has length 296 [2025-03-08 15:25:20,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:20,426 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 466 transitions. [2025-03-08 15:25:20,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:20,426 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 466 transitions. [2025-03-08 15:25:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2025-03-08 15:25:20,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:20,429 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:20,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 15:25:20,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:20,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -430605696, now seen corresponding path program 1 times [2025-03-08 15:25:20,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:20,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945683459] [2025-03-08 15:25:20,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:20,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:20,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-03-08 15:25:20,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-03-08 15:25:20,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:20,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 33 proven. 93 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-03-08 15:25:21,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945683459] [2025-03-08 15:25:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945683459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:25:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304489084] [2025-03-08 15:25:21,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:21,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:21,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:25:21,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 15:25:21,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-03-08 15:25:21,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-03-08 15:25:21,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:21,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:21,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 15:25:21,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:25:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 844 proven. 219 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2025-03-08 15:25:22,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:25:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 27 proven. 222 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2025-03-08 15:25:23,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304489084] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 15:25:23,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 15:25:23,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2025-03-08 15:25:23,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066694850] [2025-03-08 15:25:23,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 15:25:23,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 15:25:23,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:23,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 15:25:23,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2025-03-08 15:25:23,496 INFO L87 Difference]: Start difference. First operand 301 states and 466 transitions. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) [2025-03-08 15:25:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:24,174 INFO L93 Difference]: Finished difference Result 547 states and 830 transitions. [2025-03-08 15:25:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 15:25:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) Word has length 296 [2025-03-08 15:25:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:24,177 INFO L225 Difference]: With dead ends: 547 [2025-03-08 15:25:24,177 INFO L226 Difference]: Without dead ends: 329 [2025-03-08 15:25:24,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 585 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812 [2025-03-08 15:25:24,179 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 962 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:24,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 821 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 15:25:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-08 15:25:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 325. [2025-03-08 15:25:24,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 228 states have (on average 1.3508771929824561) internal successors, (308), 228 states have internal predecessors, (308), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-03-08 15:25:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 480 transitions. [2025-03-08 15:25:24,206 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 480 transitions. Word has length 296 [2025-03-08 15:25:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:24,207 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 480 transitions. [2025-03-08 15:25:24,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) [2025-03-08 15:25:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 480 transitions. [2025-03-08 15:25:24,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2025-03-08 15:25:24,210 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:24,210 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:24,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 15:25:24,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:24,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:24,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1635658147, now seen corresponding path program 1 times [2025-03-08 15:25:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941378354] [2025-03-08 15:25:24,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:24,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-03-08 15:25:24,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-03-08 15:25:24,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:24,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-03-08 15:25:24,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941378354] [2025-03-08 15:25:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941378354] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:25:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193502897] [2025-03-08 15:25:24,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:24,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:25,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:25,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:25:25,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 15:25:25,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-03-08 15:25:25,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-03-08 15:25:25,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:25,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:25,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 15:25:25,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:25:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 366 proven. 120 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2025-03-08 15:25:25,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:25:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-03-08 15:25:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193502897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 15:25:25,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 15:25:25,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-08 15:25:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624611880] [2025-03-08 15:25:25,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 15:25:25,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 15:25:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:25,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 15:25:25,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:25:25,775 INFO L87 Difference]: Start difference. First operand 325 states and 480 transitions. Second operand has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2025-03-08 15:25:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:26,027 INFO L93 Difference]: Finished difference Result 567 states and 837 transitions. [2025-03-08 15:25:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 15:25:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) Word has length 297 [2025-03-08 15:25:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:26,030 INFO L225 Difference]: With dead ends: 567 [2025-03-08 15:25:26,031 INFO L226 Difference]: Without dead ends: 337 [2025-03-08 15:25:26,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2025-03-08 15:25:26,032 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 341 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:26,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 581 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:25:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-03-08 15:25:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 333. [2025-03-08 15:25:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 234 states have (on average 1.3376068376068375) internal successors, (313), 234 states have internal predecessors, (313), 86 states have call successors, (86), 12 states have call predecessors, (86), 12 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-03-08 15:25:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 485 transitions. [2025-03-08 15:25:26,076 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 485 transitions. Word has length 297 [2025-03-08 15:25:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:26,076 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 485 transitions. [2025-03-08 15:25:26,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2025-03-08 15:25:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 485 transitions. [2025-03-08 15:25:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2025-03-08 15:25:26,079 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:26,079 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:26,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 15:25:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:26,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:26,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1395118018, now seen corresponding path program 1 times [2025-03-08 15:25:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201881956] [2025-03-08 15:25:26,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:26,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-03-08 15:25:26,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-03-08 15:25:26,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:26,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-03-08 15:25:26,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:26,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201881956] [2025-03-08 15:25:26,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201881956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:25:26,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:25:26,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 15:25:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508581554] [2025-03-08 15:25:26,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:25:26,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 15:25:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:26,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 15:25:26,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:25:26,441 INFO L87 Difference]: Start difference. First operand 333 states and 485 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:26,532 INFO L93 Difference]: Finished difference Result 801 states and 1183 transitions. [2025-03-08 15:25:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 15:25:26,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 297 [2025-03-08 15:25:26,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:26,536 INFO L225 Difference]: With dead ends: 801 [2025-03-08 15:25:26,536 INFO L226 Difference]: Without dead ends: 567 [2025-03-08 15:25:26,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:25:26,538 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 199 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:26,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 796 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:25:26,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2025-03-08 15:25:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 565. [2025-03-08 15:25:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 417 states have (on average 1.3741007194244603) internal successors, (573), 417 states have internal predecessors, (573), 129 states have call successors, (129), 18 states have call predecessors, (129), 18 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2025-03-08 15:25:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 831 transitions. [2025-03-08 15:25:26,602 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 831 transitions. Word has length 297 [2025-03-08 15:25:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:26,603 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 831 transitions. [2025-03-08 15:25:26,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-03-08 15:25:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 831 transitions. [2025-03-08 15:25:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2025-03-08 15:25:26,606 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:26,607 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:26,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 15:25:26,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:26,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1856911793, now seen corresponding path program 1 times [2025-03-08 15:25:26,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:26,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873749465] [2025-03-08 15:25:26,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:26,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-03-08 15:25:27,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-03-08 15:25:27,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:27,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 204 proven. 366 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2025-03-08 15:25:28,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:25:28,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873749465] [2025-03-08 15:25:28,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873749465] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:25:28,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329110212] [2025-03-08 15:25:28,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:28,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:28,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:25:28,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 15:25:28,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-03-08 15:25:28,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-03-08 15:25:28,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:28,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:25:28,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-08 15:25:28,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:25:32,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2227 proven. 612 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2025-03-08 15:25:32,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:25:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329110212] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:25:33,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 15:25:33,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 28] total 40 [2025-03-08 15:25:33,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559545390] [2025-03-08 15:25:33,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 15:25:33,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-03-08 15:25:33,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:25:33,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-03-08 15:25:33,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=2709, Unknown=0, NotChecked=0, Total=3422 [2025-03-08 15:25:33,989 INFO L87 Difference]: Start difference. First operand 565 states and 831 transitions. Second operand has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) [2025-03-08 15:25:35,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:25:35,886 INFO L93 Difference]: Finished difference Result 1242 states and 1787 transitions. [2025-03-08 15:25:35,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-08 15:25:35,887 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) Word has length 298 [2025-03-08 15:25:35,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:25:35,891 INFO L225 Difference]: With dead ends: 1242 [2025-03-08 15:25:35,891 INFO L226 Difference]: Without dead ends: 776 [2025-03-08 15:25:35,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1198, Invalid=3914, Unknown=0, NotChecked=0, Total=5112 [2025-03-08 15:25:35,894 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1706 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 15:25:35,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 3096 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 15:25:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2025-03-08 15:25:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 690. [2025-03-08 15:25:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 524 states have (on average 1.3530534351145038) internal successors, (709), 524 states have internal predecessors, (709), 129 states have call successors, (129), 36 states have call predecessors, (129), 36 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2025-03-08 15:25:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 967 transitions. [2025-03-08 15:25:35,968 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 967 transitions. Word has length 298 [2025-03-08 15:25:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:25:35,968 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 967 transitions. [2025-03-08 15:25:35,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) [2025-03-08 15:25:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 967 transitions. [2025-03-08 15:25:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2025-03-08 15:25:35,971 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:25:35,971 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:25:35,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 15:25:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:36,176 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:25:36,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:25:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -108201111, now seen corresponding path program 1 times [2025-03-08 15:25:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:25:36,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258472740] [2025-03-08 15:25:36,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:36,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:25:36,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-03-08 15:25:36,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-03-08 15:25:36,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:25:36,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 15:25:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16435376] [2025-03-08 15:25:36,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:25:36,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:25:36,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:25:36,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:25:36,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 15:25:36,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-03-08 15:26:14,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-03-08 15:26:14,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:26:14,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:26:14,134 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:26:14,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes.