./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_fillercode_fillercodesize_ps-cn-10_file-95.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 c1a619d587ea8887a624d8cc5293de5beed2f7340bed2d614c4c129aa4f65e00 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 02:05:04,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 02:05:04,672 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 02:05:04,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 02:05:04,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 02:05:04,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 02:05:04,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 02:05:04,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 02:05:04,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 02:05:04,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 02:05:04,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 02:05:04,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 02:05:04,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 02:05:04,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 02:05:04,724 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 02:05:04,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 02:05:04,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 02:05:04,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 02:05:04,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 02:05:04,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 02:05:04,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 02:05:04,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 02:05:04,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 02:05:04,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 02:05:04,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 02:05:04,731 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 02:05:04,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 02:05:04,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 02:05:04,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 02:05:04,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 02:05:04,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 02:05:04,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 02:05:04,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 02:05:04,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 02:05:04,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 02:05:04,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 02:05:04,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 02:05:04,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 02:05:04,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 02:05:04,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 02:05:04,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 02:05:04,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 02:05:04,738 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1a619d587ea8887a624d8cc5293de5beed2f7340bed2d614c4c129aa4f65e00 [2024-11-12 02:05:05,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 02:05:05,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 02:05:05,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 02:05:05,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 02:05:05,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 02:05:05,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-95.i [2024-11-12 02:05:06,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 02:05:06,751 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 02:05:06,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-95.i [2024-11-12 02:05:06,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af4be905d/8368404dd2464b6b8a457b46a8be0728/FLAG0305675e0 [2024-11-12 02:05:06,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af4be905d/8368404dd2464b6b8a457b46a8be0728 [2024-11-12 02:05:06,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 02:05:06,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 02:05:06,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 02:05:06,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 02:05:06,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 02:05:06,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:05:06" (1/1) ... [2024-11-12 02:05:06,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@868cf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:06, skipping insertion in model container [2024-11-12 02:05:06,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:05:06" (1/1) ... [2024-11-12 02:05:06,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 02:05:07,043 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_fillercode_fillercodesize_ps-cn-10_file-95.i[915,928] [2024-11-12 02:05:07,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 02:05:07,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 02:05:07,136 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_fillercode_fillercodesize_ps-cn-10_file-95.i[915,928] [2024-11-12 02:05:07,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 02:05:07,216 INFO L204 MainTranslator]: Completed translation [2024-11-12 02:05:07,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07 WrapperNode [2024-11-12 02:05:07,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 02:05:07,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 02:05:07,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 02:05:07,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 02:05:07,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,291 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 181 [2024-11-12 02:05:07,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 02:05:07,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 02:05:07,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 02:05:07,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 02:05:07,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,339 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]. [2024-11-12 02:05:07,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 02:05:07,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 02:05:07,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 02:05:07,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 02:05:07,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (1/1) ... [2024-11-12 02:05:07,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 02:05:07,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 02:05:07,408 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) [2024-11-12 02:05:07,411 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 [2024-11-12 02:05:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 02:05:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 02:05:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 02:05:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 02:05:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 02:05:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 02:05:07,548 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 02:05:07,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 02:05:07,913 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-12 02:05:07,913 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 02:05:07,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 02:05:07,926 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 02:05:07,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:05:07 BoogieIcfgContainer [2024-11-12 02:05:07,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 02:05:07,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 02:05:07,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 02:05:07,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 02:05:07,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:05:06" (1/3) ... [2024-11-12 02:05:07,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3c82c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:05:07, skipping insertion in model container [2024-11-12 02:05:07,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:05:07" (2/3) ... [2024-11-12 02:05:07,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3c82c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:05:07, skipping insertion in model container [2024-11-12 02:05:07,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:05:07" (3/3) ... [2024-11-12 02:05:07,938 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-95.i [2024-11-12 02:05:07,953 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 02:05:07,953 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 02:05:08,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 02:05:08,038 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;@6c1c0a8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 02:05:08,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 02:05:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 02:05:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-12 02:05:08,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 02:05:08,066 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 02:05:08,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 02:05:08,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 02:05:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash 482529241, now seen corresponding path program 1 times [2024-11-12 02:05:08,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 02:05:08,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219803417] [2024-11-12 02:05:08,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 02:05:08,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 02:05:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 02:05:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 02:05:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 02:05:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 02:05:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 02:05:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 02:05:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-12 02:05:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 02:05:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 02:05:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 02:05:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 02:05:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 02:05:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-12 02:05:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 02:05:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 02:05:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 02:05:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-12 02:05:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-12 02:05:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-12 02:05:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-12 02:05:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 02:05:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 02:05:08,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 02:05:08,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219803417] [2024-11-12 02:05:08,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219803417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 02:05:08,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 02:05:08,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 02:05:08,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687831757] [2024-11-12 02:05:08,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 02:05:08,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 02:05:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 02:05:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 02:05:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 02:05:08,589 INFO L87 Difference]: Start difference. First operand has 75 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 02:05:08,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 02:05:08,622 INFO L93 Difference]: Finished difference Result 142 states and 242 transitions. [2024-11-12 02:05:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 02:05:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 134 [2024-11-12 02:05:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 02:05:08,635 INFO L225 Difference]: With dead ends: 142 [2024-11-12 02:05:08,635 INFO L226 Difference]: Without dead ends: 70 [2024-11-12 02:05:08,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 02:05:08,642 INFO L435 NwaCegarLoop]: 105 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, 105 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 [2024-11-12 02:05:08,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 02:05:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-12 02:05:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-12 02:05:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 02:05:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 105 transitions. [2024-11-12 02:05:08,684 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 105 transitions. Word has length 134 [2024-11-12 02:05:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 02:05:08,687 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 105 transitions. [2024-11-12 02:05:08,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 02:05:08,688 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 105 transitions. [2024-11-12 02:05:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-12 02:05:08,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 02:05:08,694 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 02:05:08,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 02:05:08,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 02:05:08,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 02:05:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1176129053, now seen corresponding path program 1 times [2024-11-12 02:05:08,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 02:05:08,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77705695] [2024-11-12 02:05:08,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 02:05:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 02:05:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat