./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_floatingpointinfluence_no-floats_file-28.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 05976cf19c2340bbdfc64774c28749e3f9c87d6988a912aca41569d6eccee426 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 22:34:01,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 22:34:01,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 22:34:01,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 22:34:01,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 22:34:01,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 22:34:01,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 22:34:01,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 22:34:01,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 22:34:01,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 22:34:01,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 22:34:01,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 22:34:01,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 22:34:01,480 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 22:34:01,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 22:34:01,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 22:34:01,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 22:34:01,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 22:34:01,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 22:34:01,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 22:34:01,481 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 -> 05976cf19c2340bbdfc64774c28749e3f9c87d6988a912aca41569d6eccee426 [2025-03-03 22:34:01,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 22:34:01,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 22:34:01,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 22:34:01,730 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 22:34:01,730 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 22:34:01,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:02,908 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f67052e/9de398e5f4284da7bb4557ba08528bf9/FLAG20dc7c4fa [2025-03-03 22:34:03,155 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 22:34:03,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:03,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f67052e/9de398e5f4284da7bb4557ba08528bf9/FLAG20dc7c4fa [2025-03-03 22:34:03,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f67052e/9de398e5f4284da7bb4557ba08528bf9 [2025-03-03 22:34:03,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 22:34:03,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 22:34:03,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 22:34:03,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 22:34:03,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 22:34:03,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f4a2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03, skipping insertion in model container [2025-03-03 22:34:03,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 22:34:03,322 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_floatingpointinfluence_no-floats_file-28.i[916,929] [2025-03-03 22:34:03,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 22:34:03,364 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 22:34:03,370 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_floatingpointinfluence_no-floats_file-28.i[916,929] [2025-03-03 22:34:03,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 22:34:03,397 INFO L204 MainTranslator]: Completed translation [2025-03-03 22:34:03,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03 WrapperNode [2025-03-03 22:34:03,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 22:34:03,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 22:34:03,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 22:34:03,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 22:34:03,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,424 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2025-03-03 22:34:03,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 22:34:03,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 22:34:03,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 22:34:03,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 22:34:03,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,441 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]. [2025-03-03 22:34:03,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,444 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 22:34:03,448 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 22:34:03,448 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 22:34:03,448 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 22:34:03,449 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (1/1) ... [2025-03-03 22:34:03,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 22:34:03,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 22:34:03,484 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) [2025-03-03 22:34:03,487 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 [2025-03-03 22:34:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 22:34:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 22:34:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 22:34:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 22:34:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 22:34:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 22:34:03,555 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 22:34:03,557 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 22:34:03,764 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L91: havoc property_#t~bitwise14#1;havoc property_#t~short15#1; [2025-03-03 22:34:03,784 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-03-03 22:34:03,784 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 22:34:03,798 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 22:34:03,799 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 22:34:03,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:34:03 BoogieIcfgContainer [2025-03-03 22:34:03,799 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 22:34:03,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 22:34:03,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 22:34:03,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 22:34:03,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:34:03" (1/3) ... [2025-03-03 22:34:03,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f38bc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:34:03, skipping insertion in model container [2025-03-03 22:34:03,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:03" (2/3) ... [2025-03-03 22:34:03,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f38bc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:34:03, skipping insertion in model container [2025-03-03 22:34:03,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:34:03" (3/3) ... [2025-03-03 22:34:03,807 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:03,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 22:34:03,819 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-28.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 22:34:03,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 22:34:03,871 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;@2e601873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 22:34:03,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 22:34:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-03 22:34:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-03 22:34:03,884 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:03,885 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:03,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:03,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:03,890 INFO L85 PathProgramCache]: Analyzing trace with hash 433102150, now seen corresponding path program 1 times [2025-03-03 22:34:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:03,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768882485] [2025-03-03 22:34:03,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:03,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:03,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 22:34:03,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 22:34:03,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:03,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-03-03 22:34:04,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768882485] [2025-03-03 22:34:04,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768882485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 22:34:04,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548334813] [2025-03-03 22:34:04,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:04,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 22:34:04,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 22:34:04,087 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) [2025-03-03 22:34:04,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 22:34:04,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 22:34:04,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 22:34:04,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:04,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:04,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 22:34:04,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 22:34:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-03-03 22:34:04,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 22:34:04,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548334813] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:04,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 22:34:04,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-03 22:34:04,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982565446] [2025-03-03 22:34:04,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:04,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 22:34:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:04,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 22:34:04,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 22:34:04,260 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-03 22:34:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:04,278 INFO L93 Difference]: Finished difference Result 112 states and 185 transitions. [2025-03-03 22:34:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 22:34:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2025-03-03 22:34:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:04,284 INFO L225 Difference]: With dead ends: 112 [2025-03-03 22:34:04,284 INFO L226 Difference]: Without dead ends: 56 [2025-03-03 22:34:04,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 22:34:04,289 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:04,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 22:34:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-03 22:34:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-03 22:34:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-03 22:34:04,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2025-03-03 22:34:04,318 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 116 [2025-03-03 22:34:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:04,318 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2025-03-03 22:34:04,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-03 22:34:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2025-03-03 22:34:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-03 22:34:04,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:04,323 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:04,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 22:34:04,523 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 [2025-03-03 22:34:04,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:04,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:04,524 INFO L85 PathProgramCache]: Analyzing trace with hash -146612058, now seen corresponding path program 1 times [2025-03-03 22:34:04,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:04,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252341597] [2025-03-03 22:34:04,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:04,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:04,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 22:34:04,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 22:34:04,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:04,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:05,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252341597] [2025-03-03 22:34:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252341597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:05,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:05,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 22:34:05,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120005112] [2025-03-03 22:34:05,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:05,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 22:34:05,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:05,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 22:34:05,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-03 22:34:05,597 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:05,907 INFO L93 Difference]: Finished difference Result 168 states and 232 transitions. [2025-03-03 22:34:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 22:34:05,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2025-03-03 22:34:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:05,910 INFO L225 Difference]: With dead ends: 168 [2025-03-03 22:34:05,911 INFO L226 Difference]: Without dead ends: 115 [2025-03-03 22:34:05,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-03 22:34:05,913 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 80 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:05,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 537 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 22:34:05,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-03 22:34:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 100. [2025-03-03 22:34:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 70 states have internal predecessors, (84), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-03 22:34:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2025-03-03 22:34:05,934 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 140 transitions. Word has length 116 [2025-03-03 22:34:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:05,935 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 140 transitions. [2025-03-03 22:34:05,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2025-03-03 22:34:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-03 22:34:05,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:05,938 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:05,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 22:34:05,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:05,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash -343125563, now seen corresponding path program 1 times [2025-03-03 22:34:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182395713] [2025-03-03 22:34:05,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:05,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 22:34:05,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 22:34:05,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:05,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182395713] [2025-03-03 22:34:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182395713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:06,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:06,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 22:34:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687916074] [2025-03-03 22:34:06,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:06,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 22:34:06,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:06,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 22:34:06,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-03 22:34:06,331 INFO L87 Difference]: Start difference. First operand 100 states and 140 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:06,530 INFO L93 Difference]: Finished difference Result 212 states and 292 transitions. [2025-03-03 22:34:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 22:34:06,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2025-03-03 22:34:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:06,533 INFO L225 Difference]: With dead ends: 212 [2025-03-03 22:34:06,534 INFO L226 Difference]: Without dead ends: 115 [2025-03-03 22:34:06,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-03 22:34:06,536 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 98 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:06,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 477 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 22:34:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-03 22:34:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 93. [2025-03-03 22:34:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-03 22:34:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2025-03-03 22:34:06,552 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 116 [2025-03-03 22:34:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:06,553 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2025-03-03 22:34:06,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2025-03-03 22:34:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-03 22:34:06,554 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:06,554 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:06,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 22:34:06,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:06,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash -17529339, now seen corresponding path program 1 times [2025-03-03 22:34:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:06,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074681899] [2025-03-03 22:34:06,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:06,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:06,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 22:34:06,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 22:34:06,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:06,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:06,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:06,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074681899] [2025-03-03 22:34:06,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074681899] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:06,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:06,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 22:34:06,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562335792] [2025-03-03 22:34:06,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:06,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 22:34:06,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:06,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 22:34:06,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 22:34:06,675 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:06,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:06,739 INFO L93 Difference]: Finished difference Result 200 states and 278 transitions. [2025-03-03 22:34:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 22:34:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2025-03-03 22:34:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:06,744 INFO L225 Difference]: With dead ends: 200 [2025-03-03 22:34:06,744 INFO L226 Difference]: Without dead ends: 110 [2025-03-03 22:34:06,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 22:34:06,745 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 66 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:06,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 164 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 22:34:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-03 22:34:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2025-03-03 22:34:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 69 states have (on average 1.144927536231884) internal successors, (79), 71 states have internal predecessors, (79), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2025-03-03 22:34:06,766 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 116 [2025-03-03 22:34:06,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:06,766 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2025-03-03 22:34:06,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2025-03-03 22:34:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-03 22:34:06,768 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:06,768 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:06,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 22:34:06,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:06,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash 13333796, now seen corresponding path program 1 times [2025-03-03 22:34:06,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:06,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92052423] [2025-03-03 22:34:06,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:06,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:06,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 22:34:06,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 22:34:06,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:06,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:07,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:07,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92052423] [2025-03-03 22:34:07,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92052423] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:07,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:07,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-03 22:34:07,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999581176] [2025-03-03 22:34:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:07,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 22:34:07,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:07,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 22:34:07,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-03 22:34:07,760 INFO L87 Difference]: Start difference. First operand 107 states and 147 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:08,112 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2025-03-03 22:34:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 22:34:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2025-03-03 22:34:08,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:08,114 INFO L225 Difference]: With dead ends: 147 [2025-03-03 22:34:08,115 INFO L226 Difference]: Without dead ends: 145 [2025-03-03 22:34:08,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-03-03 22:34:08,116 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 79 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:08,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 402 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 22:34:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-03-03 22:34:08,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 124. [2025-03-03 22:34:08,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 86 states have internal predecessors, (96), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:08,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2025-03-03 22:34:08,137 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 118 [2025-03-03 22:34:08,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:08,137 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2025-03-03 22:34:08,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:08,137 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2025-03-03 22:34:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-03 22:34:08,138 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:08,138 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:08,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 22:34:08,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:08,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1794120667, now seen corresponding path program 1 times [2025-03-03 22:34:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133861930] [2025-03-03 22:34:08,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:08,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 22:34:08,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 22:34:08,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:08,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133861930] [2025-03-03 22:34:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133861930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-03 22:34:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228319000] [2025-03-03 22:34:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:08,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 22:34:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:08,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 22:34:08,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-03 22:34:08,718 INFO L87 Difference]: Start difference. First operand 124 states and 164 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:08,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:08,981 INFO L93 Difference]: Finished difference Result 154 states and 198 transitions. [2025-03-03 22:34:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 22:34:08,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2025-03-03 22:34:08,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:08,983 INFO L225 Difference]: With dead ends: 154 [2025-03-03 22:34:08,983 INFO L226 Difference]: Without dead ends: 152 [2025-03-03 22:34:08,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-03 22:34:08,983 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 65 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:08,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 453 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 22:34:08,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2025-03-03 22:34:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 124. [2025-03-03 22:34:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 86 states have internal predecessors, (96), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2025-03-03 22:34:08,997 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 118 [2025-03-03 22:34:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:08,998 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2025-03-03 22:34:08,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2025-03-03 22:34:08,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-03 22:34:08,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:08,999 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:08,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 22:34:08,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:08,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash -666934054, now seen corresponding path program 1 times [2025-03-03 22:34:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156450222] [2025-03-03 22:34:09,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:09,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:09,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 22:34:09,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 22:34:09,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:09,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156450222] [2025-03-03 22:34:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156450222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:09,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:09,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 22:34:09,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365173875] [2025-03-03 22:34:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:09,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 22:34:09,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:09,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 22:34:09,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 22:34:09,401 INFO L87 Difference]: Start difference. First operand 124 states and 164 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:09,613 INFO L93 Difference]: Finished difference Result 257 states and 332 transitions. [2025-03-03 22:34:09,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 22:34:09,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2025-03-03 22:34:09,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:09,615 INFO L225 Difference]: With dead ends: 257 [2025-03-03 22:34:09,615 INFO L226 Difference]: Without dead ends: 146 [2025-03-03 22:34:09,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-03 22:34:09,616 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 94 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:09,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 592 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 22:34:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-03 22:34:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 131. [2025-03-03 22:34:09,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 91 states have (on average 1.1428571428571428) internal successors, (104), 93 states have internal predecessors, (104), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:09,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 172 transitions. [2025-03-03 22:34:09,634 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 172 transitions. Word has length 118 [2025-03-03 22:34:09,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:09,635 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 172 transitions. [2025-03-03 22:34:09,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:09,636 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 172 transitions. [2025-03-03 22:34:09,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-03 22:34:09,636 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:09,637 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:09,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 22:34:09,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:09,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:09,637 INFO L85 PathProgramCache]: Analyzing trace with hash -537851335, now seen corresponding path program 1 times [2025-03-03 22:34:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:09,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687558477] [2025-03-03 22:34:09,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:09,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 22:34:09,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 22:34:09,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:09,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:09,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:09,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687558477] [2025-03-03 22:34:09,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687558477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:09,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:09,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 22:34:09,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501396612] [2025-03-03 22:34:09,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:09,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 22:34:09,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:09,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 22:34:09,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-03 22:34:09,895 INFO L87 Difference]: Start difference. First operand 131 states and 172 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:10,044 INFO L93 Difference]: Finished difference Result 264 states and 339 transitions. [2025-03-03 22:34:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 22:34:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2025-03-03 22:34:10,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:10,048 INFO L225 Difference]: With dead ends: 264 [2025-03-03 22:34:10,048 INFO L226 Difference]: Without dead ends: 146 [2025-03-03 22:34:10,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-03 22:34:10,049 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 78 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:10,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 506 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 22:34:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-03 22:34:10,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 124. [2025-03-03 22:34:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 163 transitions. [2025-03-03 22:34:10,065 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 163 transitions. Word has length 118 [2025-03-03 22:34:10,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:10,066 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 163 transitions. [2025-03-03 22:34:10,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 163 transitions. [2025-03-03 22:34:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-03 22:34:10,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:10,067 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:10,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 22:34:10,067 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:10,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1261290942, now seen corresponding path program 1 times [2025-03-03 22:34:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861300920] [2025-03-03 22:34:10,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:10,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:10,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-03 22:34:10,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-03 22:34:10,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:10,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:10,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:10,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861300920] [2025-03-03 22:34:10,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861300920] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:10,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:10,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 22:34:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885992661] [2025-03-03 22:34:10,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:10,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 22:34:10,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:10,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 22:34:10,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 22:34:10,110 INFO L87 Difference]: Start difference. First operand 124 states and 163 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:10,148 INFO L93 Difference]: Finished difference Result 261 states and 337 transitions. [2025-03-03 22:34:10,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 22:34:10,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2025-03-03 22:34:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:10,149 INFO L225 Difference]: With dead ends: 261 [2025-03-03 22:34:10,149 INFO L226 Difference]: Without dead ends: 150 [2025-03-03 22:34:10,149 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 [2025-03-03 22:34:10,150 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 28 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:10,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 149 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 22:34:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-03 22:34:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2025-03-03 22:34:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 102 states have internal predecessors, (110), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-03 22:34:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2025-03-03 22:34:10,166 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 190 transitions. Word has length 120 [2025-03-03 22:34:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:10,166 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 190 transitions. [2025-03-03 22:34:10,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2025-03-03 22:34:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-03 22:34:10,167 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:10,167 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:10,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 22:34:10,167 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1289363847, now seen corresponding path program 1 times [2025-03-03 22:34:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411243460] [2025-03-03 22:34:10,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:10,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-03 22:34:10,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-03 22:34:10,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:10,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-03 22:34:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 22:34:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411243460] [2025-03-03 22:34:10,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411243460] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:10,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:10,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 22:34:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556010014] [2025-03-03 22:34:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:10,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 22:34:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 22:34:10,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 22:34:10,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 22:34:10,210 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:10,254 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2025-03-03 22:34:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 22:34:10,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2025-03-03 22:34:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:10,256 INFO L225 Difference]: With dead ends: 286 [2025-03-03 22:34:10,256 INFO L226 Difference]: Without dead ends: 152 [2025-03-03 22:34:10,257 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 [2025-03-03 22:34:10,257 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 32 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:10,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 133 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 22:34:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2025-03-03 22:34:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 132. [2025-03-03 22:34:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 90 states have (on average 1.1) internal successors, (99), 92 states have internal predecessors, (99), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-03 22:34:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2025-03-03 22:34:10,273 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 120 [2025-03-03 22:34:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:10,273 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2025-03-03 22:34:10,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-03 22:34:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2025-03-03 22:34:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 22:34:10,274 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:10,274 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:10,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 22:34:10,275 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:10,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:10,275 INFO L85 PathProgramCache]: Analyzing trace with hash 976724567, now seen corresponding path program 1 times [2025-03-03 22:34:10,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 22:34:10,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825171083] [2025-03-03 22:34:10,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:10,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 22:34:10,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 22:34:10,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 22:34:10,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:10,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 22:34:10,316 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 22:34:10,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 22:34:10,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 22:34:10,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:10,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 22:34:10,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 22:34:10,372 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 22:34:10,373 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 22:34:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 22:34:10,377 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:10,440 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 22:34:10,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 10:34:10 BoogieIcfgContainer [2025-03-03 22:34:10,443 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 22:34:10,444 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 22:34:10,444 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 22:34:10,444 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 22:34:10,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:34:03" (3/4) ... [2025-03-03 22:34:10,448 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 22:34:10,448 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 22:34:10,449 INFO L158 Benchmark]: Toolchain (without parser) took 7245.91ms. Allocated memory was 167.8MB in the beginning and 469.8MB in the end (delta: 302.0MB). Free memory was 123.6MB in the beginning and 405.8MB in the end (delta: -282.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2025-03-03 22:34:10,449 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 201.3MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 22:34:10,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.21ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 110.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 22:34:10,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.19ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 108.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 22:34:10,450 INFO L158 Benchmark]: Boogie Preprocessor took 23.17ms. Allocated memory is still 167.8MB. Free memory was 108.8MB in the beginning and 107.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 22:34:10,451 INFO L158 Benchmark]: IcfgBuilder took 351.04ms. Allocated memory is still 167.8MB. Free memory was 107.0MB in the beginning and 88.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 22:34:10,451 INFO L158 Benchmark]: TraceAbstraction took 6642.25ms. Allocated memory was 167.8MB in the beginning and 469.8MB in the end (delta: 302.0MB). Free memory was 88.3MB in the beginning and 405.9MB in the end (delta: -317.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 22:34:10,451 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 469.8MB. Free memory was 405.9MB in the beginning and 405.8MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 22:34:10,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 201.3MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.21ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 110.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.19ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 108.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.17ms. Allocated memory is still 167.8MB. Free memory was 108.8MB in the beginning and 107.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 351.04ms. Allocated memory is still 167.8MB. Free memory was 107.0MB in the beginning and 88.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6642.25ms. Allocated memory was 167.8MB in the beginning and 469.8MB in the end (delta: 302.0MB). Free memory was 88.3MB in the beginning and 405.9MB in the end (delta: -317.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 469.8MB. Free memory was 405.9MB in the beginning and 405.8MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 91, overapproximation of bitwiseOr at line 52. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 1; [L23] signed long int var_1_2 = 63; [L24] signed long int var_1_3 = 255; [L25] signed char var_1_5 = 10; [L26] signed char var_1_6 = 4; [L27] signed char var_1_7 = -10; [L28] signed long int var_1_8 = 4; [L29] signed long int var_1_9 = 99; [L30] signed long int var_1_10 = 255; [L31] signed long int var_1_11 = 24; [L32] signed long int var_1_12 = -2; [L33] signed long int var_1_13 = 1629954775; [L34] signed long int var_1_15 = 1928642731; [L35] signed short int var_1_18 = 0; [L36] unsigned short int var_1_19 = 5; VAL [isInitial=0, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=63, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_long() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L62] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L62] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=255, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L63] var_1_3 = __VERIFIER_nondet_long() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L65] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L65] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=10, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L66] var_1_5 = __VERIFIER_nondet_char() [L67] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L67] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L68] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L68] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=4, var_1_7=-10, var_1_8=4, var_1_9=99] [L69] var_1_6 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L71] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L71] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-10, var_1_8=4, var_1_9=99] [L72] var_1_7 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L73] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L74] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L74] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=99] [L75] var_1_9 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L76] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L77] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L77] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=255, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L78] var_1_10 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L79] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L80] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L80] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=1629954775, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L81] var_1_13 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_13 >= 1073741822) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L82] RET assume_abort_if_not(var_1_13 >= 1073741822) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L83] CALL assume_abort_if_not(var_1_13 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L83] RET assume_abort_if_not(var_1_13 <= 2147483646) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1928642731, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L84] var_1_15 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_15 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L85] RET assume_abort_if_not(var_1_15 >= 1073741823) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L86] CALL assume_abort_if_not(var_1_15 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L86] RET assume_abort_if_not(var_1_15 <= 2147483646) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L99] RET updateVariables() [L100] CALL step() [L40] signed long int stepLocal_0 = -4; VAL [isInitial=1, stepLocal_0=-4, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=4, var_1_9=-1] [L41] COND TRUE stepLocal_0 < var_1_6 [L42] var_1_8 = ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) VAL [isInitial=1, var_1_10=-1, var_1_11=24, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=0, var_1_19=5, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L44] var_1_11 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) [L45] var_1_18 = var_1_5 [L46] var_1_19 = var_1_6 VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L47] COND TRUE (var_1_2 - var_1_3) <= (- var_1_8) [L48] var_1_1 = (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))) VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L52] EXPR var_1_6 | 5 VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-2, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L52] signed long int stepLocal_1 = var_1_6 | 5; [L53] COND TRUE stepLocal_1 <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7))) [L54] var_1_12 = (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (((((var_1_2 - var_1_3) <= (- var_1_8)) ? (var_1_1 == ((signed char) (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))))) : (var_1_1 == ((signed char) var_1_5))) && ((-4 < var_1_6) ? (var_1_8 == ((signed long int) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1)) && (var_1_11 == ((signed long int) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) && (((var_1_6 | 5) <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) ? (var_1_12 == ((signed long int) (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))))) : (var_1_12 == ((signed long int) (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19))))) VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L91] EXPR var_1_6 | 5 VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L91] EXPR (((((var_1_2 - var_1_3) <= (- var_1_8)) ? (var_1_1 == ((signed char) (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))))) : (var_1_1 == ((signed char) var_1_5))) && ((-4 < var_1_6) ? (var_1_8 == ((signed long int) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1)) && (var_1_11 == ((signed long int) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) && (((var_1_6 | 5) <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) ? (var_1_12 == ((signed long int) (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))))) : (var_1_12 == ((signed long int) (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19))))) VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L91-L92] return (((((((var_1_2 - var_1_3) <= (- var_1_8)) ? (var_1_1 == ((signed char) (((((var_1_5 - var_1_6)) < (var_1_7)) ? ((var_1_5 - var_1_6)) : (var_1_7))))) : (var_1_1 == ((signed char) var_1_5))) && ((-4 < var_1_6) ? (var_1_8 == ((signed long int) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1)) && (var_1_11 == ((signed long int) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) && (((var_1_6 | 5) <= ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) ? (var_1_12 == ((signed long int) (((((var_1_6) < ((var_1_13 - var_1_19))) ? (var_1_6) : ((var_1_13 - var_1_19)))) - (var_1_15 - ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))))) : (var_1_12 == ((signed long int) (var_1_6 + (((((var_1_19) < (var_1_19)) ? (var_1_19) : (var_1_19))) - var_1_19)))))) && (var_1_18 == ((signed short int) var_1_5))) && (var_1_19 == ((unsigned short int) var_1_6)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] [L19] reach_error() VAL [isInitial=1, var_1_10=-1, var_1_11=-1, var_1_12=-1073741575, var_1_13=2147483646, var_1_15=1073741823, var_1_18=126, var_1_19=122, var_1_1=-127, var_1_2=0, var_1_3=0, var_1_5=126, var_1_6=122, var_1_7=-127, var_1_8=-1, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 620 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 620 mSDsluCounter, 3490 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2510 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1145 IncrementalHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 980 mSDtfsCounter, 1145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=9, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 149 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1414 NumberOfCodeBlocks, 1414 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1281 ConstructedInterpolants, 0 QuantifiedInterpolants, 4681 SizeOfPredicates, 0 NumberOfNonLiveVariables, 274 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 6698/6732 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 22:34:10,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_floatingpointinfluence_no-floats_file-28.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 05976cf19c2340bbdfc64774c28749e3f9c87d6988a912aca41569d6eccee426 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 22:34:12,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 22:34:12,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 22:34:12,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 22:34:12,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 22:34:12,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 22:34:12,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 22:34:12,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 22:34:12,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 22:34:12,417 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 22:34:12,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 22:34:12,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 22:34:12,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 22:34:12,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 22:34:12,419 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 22:34:12,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 22:34:12,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 22:34:12,419 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 22:34:12,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 22:34:12,420 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 22:34:12,421 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 22:34:12,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 22:34:12,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 22:34:12,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 22:34:12,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 22:34:12,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 22:34:12,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 22:34:12,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 22:34:12,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 22:34:12,423 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 -> 05976cf19c2340bbdfc64774c28749e3f9c87d6988a912aca41569d6eccee426 [2025-03-03 22:34:12,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 22:34:12,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 22:34:12,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 22:34:12,659 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 22:34:12,660 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 22:34:12,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:13,828 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583ba02e0/0e1d3fd08e6b4193827650ad45c7a3c3/FLAG2e4e17d7c [2025-03-03 22:34:14,005 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 22:34:14,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:14,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583ba02e0/0e1d3fd08e6b4193827650ad45c7a3c3/FLAG2e4e17d7c [2025-03-03 22:34:14,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583ba02e0/0e1d3fd08e6b4193827650ad45c7a3c3 [2025-03-03 22:34:14,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 22:34:14,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 22:34:14,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 22:34:14,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 22:34:14,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 22:34:14,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794c8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14, skipping insertion in model container [2025-03-03 22:34:14,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 22:34:14,503 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_floatingpointinfluence_no-floats_file-28.i[916,929] [2025-03-03 22:34:14,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 22:34:14,538 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 22:34:14,546 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_floatingpointinfluence_no-floats_file-28.i[916,929] [2025-03-03 22:34:14,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 22:34:14,577 INFO L204 MainTranslator]: Completed translation [2025-03-03 22:34:14,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14 WrapperNode [2025-03-03 22:34:14,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 22:34:14,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 22:34:14,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 22:34:14,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 22:34:14,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,616 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2025-03-03 22:34:14,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 22:34:14,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 22:34:14,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 22:34:14,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 22:34:14,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,642 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]. [2025-03-03 22:34:14,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,658 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 22:34:14,667 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 22:34:14,667 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 22:34:14,667 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 22:34:14,668 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (1/1) ... [2025-03-03 22:34:14,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 22:34:14,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 22:34:14,696 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) [2025-03-03 22:34:14,699 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 [2025-03-03 22:34:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 22:34:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 22:34:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 22:34:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 22:34:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 22:34:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 22:34:14,763 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 22:34:14,765 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 22:34:14,938 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-03 22:34:14,939 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 22:34:14,947 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 22:34:14,948 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 22:34:14,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:34:14 BoogieIcfgContainer [2025-03-03 22:34:14,948 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 22:34:14,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 22:34:14,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 22:34:14,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 22:34:14,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:34:14" (1/3) ... [2025-03-03 22:34:14,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4be8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:34:14, skipping insertion in model container [2025-03-03 22:34:14,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:34:14" (2/3) ... [2025-03-03 22:34:14,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4be8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:34:14, skipping insertion in model container [2025-03-03 22:34:14,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:34:14" (3/3) ... [2025-03-03 22:34:14,955 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-28.i [2025-03-03 22:34:14,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 22:34:14,966 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-28.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 22:34:15,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 22:34:15,013 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;@43e3c57b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 22:34:15,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 22:34:15,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-03 22:34:15,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-03 22:34:15,028 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:15,029 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:15,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:15,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2023007560, now seen corresponding path program 1 times [2025-03-03 22:34:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 22:34:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1491546087] [2025-03-03 22:34:15,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:15,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 22:34:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 22:34:15,043 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) [2025-03-03 22:34:15,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 22:34:15,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-03 22:34:15,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-03 22:34:15,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:15,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:15,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 22:34:15,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 22:34:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-03-03 22:34:15,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 22:34:15,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 22:34:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491546087] [2025-03-03 22:34:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491546087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 22:34:15,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 22:34:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 22:34:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579857674] [2025-03-03 22:34:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 22:34:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 22:34:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 22:34:15,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 22:34:15,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 22:34:15,236 INFO L87 Difference]: Start difference. First operand has 50 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-03 22:34:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 22:34:15,255 INFO L93 Difference]: Finished difference Result 94 states and 157 transitions. [2025-03-03 22:34:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 22:34:15,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2025-03-03 22:34:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 22:34:15,260 INFO L225 Difference]: With dead ends: 94 [2025-03-03 22:34:15,260 INFO L226 Difference]: Without dead ends: 47 [2025-03-03 22:34:15,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 22:34:15,264 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 22:34:15,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 22:34:15,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-03 22:34:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-03-03 22:34:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-03 22:34:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2025-03-03 22:34:15,292 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 113 [2025-03-03 22:34:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 22:34:15,293 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2025-03-03 22:34:15,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-03 22:34:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2025-03-03 22:34:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-03 22:34:15,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 22:34:15,297 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 22:34:15,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 22:34:15,497 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 [2025-03-03 22:34:15,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 22:34:15,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 22:34:15,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1376857256, now seen corresponding path program 1 times [2025-03-03 22:34:15,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 22:34:15,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826477287] [2025-03-03 22:34:15,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 22:34:15,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 22:34:15,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 22:34:15,501 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) [2025-03-03 22:34:15,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 22:34:15,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-03 22:34:15,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-03 22:34:15,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 22:34:15,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 22:34:15,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-03 22:34:15,594 INFO L279 TraceCheckSpWp]: Computing forward predicates...