./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 023d838f 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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 04:11:10,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 04:11:10,645 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 04:11:10,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 04:11:10,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 04:11:10,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 04:11:10,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 04:11:10,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 04:11:10,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 04:11:10,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 04:11:10,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 04:11:10,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 04:11:10,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 04:11:10,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 04:11:10,682 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 04:11:10,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 04:11:10,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 04:11:10,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 04:11:10,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 04:11:10,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 04:11:10,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 04:11:10,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 04:11:10,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 04:11:10,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 04:11:10,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 04:11:10,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 04:11:10,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 04:11:10,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 04:11:10,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 04:11:10,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 04:11:10,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 04:11:10,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 04:11:10,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 04:11:10,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 04:11:10,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 04:11:10,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 04:11:10,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 04:11:10,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 04:11:10,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 04:11:10,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 04:11:10,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 04:11:10,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 04:11:10,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1a619d587ea8887a624d8cc5293de5beed2f7340bed2d614c4c129aa4f65e00 [2024-11-10 04:11:10,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 04:11:10,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 04:11:11,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 04:11:11,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 04:11:11,003 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 04:11:11,005 INFO L431 ainManager$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 [2024-11-10 04:11:12,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 04:11:12,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 04:11:12,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-95.i [2024-11-10 04:11:12,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d83ff7d/b98b33512b094d3ca81639007820bd25/FLAG43f9bafe5 [2024-11-10 04:11:12,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d83ff7d/b98b33512b094d3ca81639007820bd25 [2024-11-10 04:11:12,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 04:11:12,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 04:11:12,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 04:11:12,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 04:11:12,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 04:11:12,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:11:12" (1/1) ... [2024-11-10 04:11:12,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5339e916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:12, skipping insertion in model container [2024-11-10 04:11:12,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:11:12" (1/1) ... [2024-11-10 04:11:12,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 04:11:13,045 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] [2024-11-10 04:11:13,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 04:11:13,117 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 04:11:13,129 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] [2024-11-10 04:11:13,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 04:11:13,207 INFO L204 MainTranslator]: Completed translation [2024-11-10 04:11:13,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13 WrapperNode [2024-11-10 04:11:13,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 04:11:13,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 04:11:13,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 04:11:13,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 04:11:13,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,283 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2024-11-10 04:11:13,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 04:11:13,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 04:11:13,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 04:11:13,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 04:11:13,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,335 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]. [2024-11-10 04:11:13,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 04:11:13,368 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 04:11:13,368 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 04:11:13,369 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 04:11:13,370 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (1/1) ... [2024-11-10 04:11:13,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 04:11:13,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 04:11:13,403 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) [2024-11-10 04:11:13,409 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 [2024-11-10 04:11:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 04:11:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 04:11:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 04:11:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 04:11:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 04:11:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 04:11:13,560 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 04:11:13,563 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 04:11:13,956 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L143: havoc property_#t~bitwise17#1;havoc property_#t~short18#1; [2024-11-10 04:11:14,008 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-10 04:11:14,008 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 04:11:14,042 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 04:11:14,042 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 04:11:14,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 04:11:14 BoogieIcfgContainer [2024-11-10 04:11:14,042 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 04:11:14,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 04:11:14,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 04:11:14,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 04:11:14,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:11:12" (1/3) ... [2024-11-10 04:11:14,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470ea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:11:14, skipping insertion in model container [2024-11-10 04:11:14,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:13" (2/3) ... [2024-11-10 04:11:14,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470ea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:11:14, skipping insertion in model container [2024-11-10 04:11:14,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 04:11:14" (3/3) ... [2024-11-10 04:11:14,051 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-95.i [2024-11-10 04:11:14,068 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 04:11:14,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 04:11:14,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 04:11:14,146 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;@5fd0749a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 04:11:14,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 04:11:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 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) [2024-11-10 04:11:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 04:11:14,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 04:11:14,173 INFO L215 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, 1, 1] [2024-11-10 04:11:14,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 04:11:14,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 04:11:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1956771725, now seen corresponding path program 1 times [2024-11-10 04:11:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 04:11:14,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559304441] [2024-11-10 04:11:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 04:11:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 04:11:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 04:11:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 04:11:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 04:11:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 04:11:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 04:11:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 04:11:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 04:11:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 04:11:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 04:11:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 04:11:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 04:11:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 04:11:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 04:11:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 04:11:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 04:11:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 04:11:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 04:11:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-10 04:11:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-10 04:11:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 04:11:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:11:14,755 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 04:11:14,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 04:11:14,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559304441] [2024-11-10 04:11:14,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559304441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 04:11:14,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 04:11:14,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 04:11:14,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664186416] [2024-11-10 04:11:14,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 04:11:14,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 04:11:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 04:11:14,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 04:11:14,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 04:11:14,805 INFO L87 Difference]: Start difference. First operand has 78 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-11-10 04:11:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 04:11:14,850 INFO L93 Difference]: Finished difference Result 147 states and 247 transitions. [2024-11-10 04:11:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 04:11:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 136 [2024-11-10 04:11:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 04:11:14,866 INFO L225 Difference]: With dead ends: 147 [2024-11-10 04:11:14,868 INFO L226 Difference]: Without dead ends: 72 [2024-11-10 04:11:14,873 INFO L431 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 [2024-11-10 04:11:14,879 INFO L432 NwaCegarLoop]: 105 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, 105 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 [2024-11-10 04:11:14,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 04:11:14,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-10 04:11:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-10 04:11:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 50 states have (on average 1.34) internal successors, (67), 50 states have internal predecessors, (67), 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) [2024-11-10 04:11:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 107 transitions. [2024-11-10 04:11:14,937 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 107 transitions. Word has length 136 [2024-11-10 04:11:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 04:11:14,937 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 107 transitions. [2024-11-10 04:11:14,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-11-10 04:11:14,938 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 107 transitions. [2024-11-10 04:11:14,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 04:11:14,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 04:11:14,943 INFO L215 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, 1, 1] [2024-11-10 04:11:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 04:11:14,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 04:11:14,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 04:11:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash 204090769, now seen corresponding path program 1 times [2024-11-10 04:11:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 04:11:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616845282] [2024-11-10 04:11:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 04:11:14,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 04:11:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat