./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 14:19:23,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 14:19:23,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 14:19:23,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 14:19:23,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 14:19:23,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 14:19:23,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 14:19:23,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 14:19:23,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 14:19:23,261 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 14:19:23,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 14:19:23,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 14:19:23,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 14:19:23,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 14:19:23,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 14:19:23,263 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 14:19:23,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 14:19:23,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 14:19:23,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 14:19:23,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 14:19:23,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 14:19:23,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 14:19:23,265 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 -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2025-03-08 14:19:23,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 14:19:23,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 14:19:23,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 14:19:23,485 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 14:19:23,485 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 14:19:23,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:24,615 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8f53b4de/35e9664964b74dd58f49963aff557720/FLAG07ab82f41 [2025-03-08 14:19:24,812 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 14:19:24,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:24,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8f53b4de/35e9664964b74dd58f49963aff557720/FLAG07ab82f41 [2025-03-08 14:19:25,174 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8f53b4de/35e9664964b74dd58f49963aff557720 [2025-03-08 14:19:25,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 14:19:25,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 14:19:25,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 14:19:25,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 14:19:25,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 14:19:25,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707a7547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25, skipping insertion in model container [2025-03-08 14:19:25,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 14:19:25,285 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2025-03-08 14:19:25,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 14:19:25,332 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 14:19:25,340 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2025-03-08 14:19:25,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 14:19:25,375 INFO L204 MainTranslator]: Completed translation [2025-03-08 14:19:25,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25 WrapperNode [2025-03-08 14:19:25,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 14:19:25,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 14:19:25,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 14:19:25,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 14:19:25,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,406 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2025-03-08 14:19:25,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 14:19:25,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 14:19:25,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 14:19:25,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 14:19:25,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,435 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 14:19:25,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,441 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 14:19:25,448 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 14:19:25,448 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 14:19:25,448 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 14:19:25,449 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (1/1) ... [2025-03-08 14:19:25,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 14:19:25,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 14:19:25,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 14:19:25,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 14:19:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 14:19:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 14:19:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 14:19:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 14:19:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 14:19:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 14:19:25,543 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 14:19:25,544 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 14:19:25,689 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-03-08 14:19:25,690 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 14:19:25,699 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 14:19:25,699 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 14:19:25,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:19:25 BoogieIcfgContainer [2025-03-08 14:19:25,700 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 14:19:25,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 14:19:25,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 14:19:25,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 14:19:25,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:19:25" (1/3) ... [2025-03-08 14:19:25,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760b4457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:19:25, skipping insertion in model container [2025-03-08 14:19:25,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:25" (2/3) ... [2025-03-08 14:19:25,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760b4457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:19:25, skipping insertion in model container [2025-03-08 14:19:25,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:19:25" (3/3) ... [2025-03-08 14:19:25,707 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:25,716 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 14:19:25,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 14:19:25,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 14:19:25,768 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;@31ecb38a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 14:19:25,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 14:19:25,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 14:19:25,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-08 14:19:25,776 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 14:19:25,776 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 14:19:25,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 14:19:25,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 14:19:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash 595391536, now seen corresponding path program 1 times [2025-03-08 14:19:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 14:19:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205817590] [2025-03-08 14:19:25,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 14:19:25,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 14:19:25,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 14:19:25,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 14:19:25,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 14:19:25,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 14:19:25,912 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 14:19:25,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 14:19:25,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 14:19:25,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 14:19:25,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 14:19:25,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 14:19:25,979 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 14:19:25,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 14:19:25,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 14:19:25,985 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 14:19:26,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 14:19:26,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:19:26 BoogieIcfgContainer [2025-03-08 14:19:26,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 14:19:26,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 14:19:26,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 14:19:26,029 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 14:19:26,029 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:19:25" (3/4) ... [2025-03-08 14:19:26,031 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 14:19:26,031 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 14:19:26,032 INFO L158 Benchmark]: Toolchain (without parser) took 855.34ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 75.9MB in the end (delta: 56.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-08 14:19:26,032 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 14:19:26,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.45ms. Allocated memory is still 167.8MB. Free memory was 132.4MB in the beginning and 120.3MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 14:19:26,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.05ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 14:19:26,033 INFO L158 Benchmark]: Boogie Preprocessor took 35.19ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 116.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 14:19:26,033 INFO L158 Benchmark]: IcfgBuilder took 252.14ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 100.6MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 14:19:26,033 INFO L158 Benchmark]: TraceAbstraction took 326.72ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 76.3MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 14:19:26,034 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 167.8MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 14:19:26,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.45ms. Allocated memory is still 167.8MB. Free memory was 132.4MB in the beginning and 120.3MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.05ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.19ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 116.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 252.14ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 100.6MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 326.72ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 76.3MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 167.8MB. Free memory is still 75.9MB. 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 someBinaryFLOATComparisonOperation at line 60, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 9.3; [L25] float var_1_4 = 3.4; [L26] unsigned short int var_1_5 = 32; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 64; [L29] unsigned short int var_1_8 = 16; [L30] unsigned short int var_1_9 = 1; VAL [isInitial=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L80] isInitial = 1 [L81] FCALL initially() [L82] int k_loop; [L83] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L83] COND TRUE k_loop < 1 [L84] FCALL updateLastVariables() [L85] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L59] var_1_3 = __VERIFIER_nondet_float() [L60] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L60] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L61] var_1_4 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L62] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=64, var_1_8=16, var_1_9=1] [L65] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=64, var_1_8=16, var_1_9=1] [L66] var_1_7 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_8=16, var_1_9=1] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_8=16, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=16, var_1_9=1] [L68] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=16, var_1_9=1] [L69] var_1_8 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_9=1] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L71] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L85] RET updateVariables() [L86] CALL step() [L34] COND TRUE \read(var_1_2) [L35] var_1_1 = var_1_3 VAL [isInitial=1, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=32, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L41] COND TRUE (var_1_1 + 8.125) > (var_1_1 * var_1_3) [L42] var_1_5 = (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))) VAL [isInitial=1, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L46] signed long int stepLocal_0 = 5 * var_1_8; VAL [isInitial=1, stepLocal_0=327670, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L47] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) VAL [isInitial=1, stepLocal_0=327670, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L86] RET step() [L87] CALL, EXPR property() [L76-L77] return ((var_1_2 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))))) : (var_1_5 == ((unsigned short int) var_1_8)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_6 > (5 * var_1_8)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_6)) : 1) : 1) : 1) ; VAL [\result=0, isInitial=1, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_1=327675, var_1_2=1, var_1_3=327675, var_1_5=65534, var_1_6=4, var_1_7=0, var_1_8=65534, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 68 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2025-03-08 14:19:26,047 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_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 14:19:27,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 14:19:27,916 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 14:19:27,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 14:19:27,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 14:19:27,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 14:19:27,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 14:19:27,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 14:19:27,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 14:19:27,951 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 14:19:27,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 14:19:27,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 14:19:27,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 14:19:27,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 14:19:27,952 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 14:19:27,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 14:19:27,953 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 14:19:27,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 14:19:27,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 14:19:27,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 14:19:27,954 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 -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2025-03-08 14:19:28,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 14:19:28,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 14:19:28,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 14:19:28,206 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 14:19:28,206 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 14:19:28,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:29,417 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e57381c2/00fa8ce337914a23b0d988c77927456f/FLAG7017576ea [2025-03-08 14:19:29,628 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 14:19:29,628 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:29,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e57381c2/00fa8ce337914a23b0d988c77927456f/FLAG7017576ea [2025-03-08 14:19:29,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e57381c2/00fa8ce337914a23b0d988c77927456f [2025-03-08 14:19:29,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 14:19:29,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 14:19:29,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 14:19:29,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 14:19:29,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 14:19:29,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:19:29" (1/1) ... [2025-03-08 14:19:29,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294e3aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:29, skipping insertion in model container [2025-03-08 14:19:29,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:19:29" (1/1) ... [2025-03-08 14:19:30,007 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 14:19:30,095 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2025-03-08 14:19:30,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 14:19:30,127 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 14:19:30,134 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2025-03-08 14:19:30,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 14:19:30,163 INFO L204 MainTranslator]: Completed translation [2025-03-08 14:19:30,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30 WrapperNode [2025-03-08 14:19:30,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 14:19:30,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 14:19:30,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 14:19:30,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 14:19:30,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,198 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2025-03-08 14:19:30,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 14:19:30,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 14:19:30,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 14:19:30,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 14:19:30,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,208 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,221 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 14:19:30,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 14:19:30,239 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 14:19:30,240 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 14:19:30,240 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 14:19:30,240 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (1/1) ... [2025-03-08 14:19:30,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 14:19:30,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 14:19:30,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 14:19:30,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 14:19:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 14:19:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 14:19:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 14:19:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 14:19:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 14:19:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 14:19:30,352 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 14:19:30,353 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 14:19:35,553 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-03-08 14:19:35,553 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 14:19:35,559 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 14:19:35,560 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 14:19:35,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:19:35 BoogieIcfgContainer [2025-03-08 14:19:35,560 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 14:19:35,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 14:19:35,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 14:19:35,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 14:19:35,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:19:29" (1/3) ... [2025-03-08 14:19:35,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb360a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:19:35, skipping insertion in model container [2025-03-08 14:19:35,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:19:30" (2/3) ... [2025-03-08 14:19:35,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb360a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:19:35, skipping insertion in model container [2025-03-08 14:19:35,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:19:35" (3/3) ... [2025-03-08 14:19:35,568 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2025-03-08 14:19:35,578 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 14:19:35,579 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 14:19:35,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 14:19:35,628 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;@6ff49df1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 14:19:35,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 14:19:35,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 14:19:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-08 14:19:35,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 14:19:35,638 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 14:19:35,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 14:19:35,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 14:19:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash 595391536, now seen corresponding path program 1 times [2025-03-08 14:19:35,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 14:19:35,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442463504] [2025-03-08 14:19:35,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 14:19:35,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 14:19:35,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 14:19:35,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 14:19:35,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 14:19:35,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 14:19:35,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 14:19:35,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 14:19:35,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 14:19:35,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 14:19:35,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 14:19:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-08 14:19:37,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 14:19:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-08 14:19:37,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 14:19:37,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442463504] [2025-03-08 14:19:37,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442463504] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 14:19:37,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 14:19:37,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-08 14:19:37,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974330823] [2025-03-08 14:19:37,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 14:19:37,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 14:19:37,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 14:19:37,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 14:19:37,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-08 14:19:37,469 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-08 14:19:39,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 14:19:41,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 14:19:44,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 14:19:47,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 14:19:50,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 14:19:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 14:19:51,123 INFO L93 Difference]: Finished difference Result 130 states and 191 transitions. [2025-03-08 14:19:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 14:19:51,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 69 [2025-03-08 14:19:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 14:19:51,133 INFO L225 Difference]: With dead ends: 130 [2025-03-08 14:19:51,133 INFO L226 Difference]: Without dead ends: 83 [2025-03-08 14:19:51,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=321, Unknown=0, NotChecked=0, Total=506 [2025-03-08 14:19:51,138 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 132 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2025-03-08 14:19:51,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 153 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2025-03-08 14:19:51,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-08 14:19:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 57. [2025-03-08 14:19:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 42 states have internal predecessors, (50), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-08 14:19:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2025-03-08 14:19:51,174 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 69 [2025-03-08 14:19:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 14:19:51,175 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2025-03-08 14:19:51,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-08 14:19:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2025-03-08 14:19:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 14:19:51,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 14:19:51,178 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 14:19:51,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-03-08 14:19:51,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 14:19:51,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 14:19:51,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 14:19:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1252394906, now seen corresponding path program 1 times [2025-03-08 14:19:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 14:19:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014709211] [2025-03-08 14:19:51,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 14:19:51,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 14:19:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 14:19:51,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 14:19:51,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 14:19:51,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 14:19:51,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 14:19:51,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 14:19:51,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 14:19:51,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-08 14:19:51,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 14:20:50,402 WARN L286 SmtUtils]: Spent 15.18s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)